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Nisthy
Nisthy. This Kind Of Attraction Is Evinced By A Variety Of Familiar Experiments ; As, By The Union Of Two Contiguous Drops Of Mercury ; By The Mutual Approach Of Two Pieces Of Cork Floating Near Each Other In A Basin Of Water ; By The Adhesion Of Two Leaden ...

Nitre
Nitre. See Nitrates. Nitre Is Found Abundantly On The Surface Of The Earth, In India, South America, South Africa, And Even In Some Parts Of Spain. In Germany And-france It Is Obtained By Means Of Artificial Nitre-beds. These Consist Of The Refuse Of Animal And Vege Table Bodies, Undergoing Putrefaction, ...

Nitric
Nitric Acid. The Two Principal Con Stituent Parts Of Our Atmosphere, When In Certain Proportions, Are Capable, Under Particular Circumstances, Of Combining Chemically, Into One Of The Most Powerful Acids, The Nitric, Which Consists, According To Mr. Davy, Of 70.5 Of Oxygen, And 29.5 Of Azote, Or Nitrogen. If These ...

Nizdia
Nizdia, =poetical, In Navigation, A Needle Touched With A Loadstone, And Sustained On A Pivot Or Centre ; On Which, Playing At Liberty, It Directs Itself To Cer Tain Points In Or Under The Horizon ; Whence The Magneticsl Needle Is Of Kinds, Viz. Horizontal And Inclinatory. Horizontal Needles Are ...

Nollet
Nollet (jona Anthony), In Biogra Phy, A French Ecclesiastic And Celebrat Ed Natural Philosopher In The Eighteenth Century, Was Born At Pimpre, In The Dio Cese Of Noyon, In The Year 1700. His Parents, Who Were Persons Of Reputable Character, Though Of Bumble Fortunes, As They Could Not Make Him ...

Nonagon
Nonagon, In Mathematics, A Figure Having Nine Sides And Angles. In A Regu Lar Nonagon, Or That The Sides And Angles Of Which Are Equal, If Each Side Be 1, Its Area Will Be 6.182 Nearly = Of The Tau 9 Gent Of 70 To The Radius. Non Claim, In ...

Nosology
Nosology. In Order To Reduce The Practice Of Me Dicine To Something Definite, To Simplify What Was Perplexed, And To Lay Down Cer Tain General Rules For A More Accurate In Vestigation Of Diseases, Physicians In All Ages Have Attempted To Arrange These Last Into A Systematized Form ; And ...

Numbers
Numbers. Hence Is Easily Deduced A General Rule Of Determining The Number Of Com Binations In Any Case Whatsoever. Sup Pose, For Example The Number Of Quan Tities To Be Combined Q, And The Expo Nent Of Combination N; The Number Of Combinations Will Be Qn Qn 1 2 &c. ...

Numbers_2
Numbers, Kinds And Distinctions Of. Ma Thematicians, Considering Number Under A Great Many Relations, Have Established The Following Distinctions. Broken Num Bers, Are The Same With Fractions. See Arithmetic. Cardinal Numbers Are Those Which Express The Quantity Of Units, As 1, 2, 3, 4, &c. ; Whereas Ordinal Num Bers, ...

Nutmeg
Nutmeg, In Natural History, The Ker Nel Of A Large Fruit, Not Unlike The Peach, The Produce Of A Tree Called, By Botanists, Msnisrica, Which See. The Nutmeg Is Separated From Its In Vestient Coat, The Mace, Before It Is Sent Over To Us ; Except That The Whole Fruit ...

Object
Object, In Philosophy, Something Ap Prehended, Or Presented To The Mind, By Sensation Or By Imagination. Onreurginss Of A Telescope, Or Microscope, The Glass Placed At The End Of The Tube Which Is Next The Object. To Prove The Goodness And Regularity Of An Object-glass, On A Paper, Describe Two ...

Observatory
Observatory, A Place Destined For Observing The Heavenly Bodies; It Is A Building Usually In Form Of A Tower, Erect Ed On An Eminence, And Covered With A Terrace For Making Astronomical Observa Tions. Most Nations Have Had Observato Ries, Which Have Been Noticed At Large In La Lande's Astronomy ...

Oe Bivalves
Bivalves, Oe Coscilg. 4. Mya. Gaper. Shell Generally Gag Ing At One End; The Hinge With, For The Most Part, A Thick, Solid, Spreading Tooth, Not Inserted In The Opposite Valve. 5. Solen. Razor-shell. Shell Oblong, Gaping At Both Ends ; Hinge With A Subu Lated Reflexed Tooth, Often Double, ...

Oestrus
Oestrus, In Natural History, Gad-fiy, A Genus Of Insects Of The Order Diptera. Mouth With A Simple Aperture, And Not Exserted : Feelers Two, Of Two Articula Tions Orbicular At The Tip, And Seated Each Side In A Depression Of The Mouth : Anten Na Of Three Articulations, The Last ...

Of Acidity
Of Acidity, And Its Concomitants Or Effects. It Is Difficult To Determine Whether Aci Dity Of The Stomach Depends At All Times On The Introduction Of Acid By The Mouth ; Or Whether The Gastric Fluid Be Sometimes Secreted In A Vitiated State. A Great Va Riety Of Acids Are ...

Of Comets
Of Comets. Besides These Planets Already Mention Ed, There Are Some Other Bodies Which Re Volve Round The Sun, Called Comets. They Move In Very Eccentric Ellipses, And Their Periods Of Revolution Are So Long, And So Uncertainly Known, That Few Are Ever Ob Served Twice. They Are Only Seen ...

Of Eclipses
Of Eclipses. When Any One Of The Heavenly Bodies Is Obscured Or Darkened By The Shadow Of Another Falling Upon It, Or By The Interpo Sition Of Any Body, It Is Said To Be Eclipsed. The Eclipses Of The Sun And Moon Are The Most Striking Of Any. They Were ...

Of Roots
Of Roots. In Defining The Parts Of Vegetables, It Is Found Most Commodious To Begin From The Bottom, Proceeding Upwards. Hence The Root, Which Is The First Part Pro Duced By A Germinating Embryo, Comes First Under Consideration. Its Presence Seems Necessary To Plants, As It Serves To Fix And ...

Of Tie Fixed Stars
Of Tie Fixed Stars. The Fixed Stars Are So Called, Because They Are Observed Not To Change Their Places In The Heavens, As The Planets Do. They Appear Of An Infinite Variety Of Sizes; Yet, For Convenience, It Is Usual To Class Them Into Six Or Seven Magnitudes ; Thus, ...

Of Tile Classification Of
Of Tile Classification Of Plants. The Species Of Plants, As Well As Of All Other Natural Productions, Are So Im Mensely Numerous, That The Most Super. Facial Observer Must Be Aware Of The Ne Cessity Of Some Regular Mode Of Arrang Ing Them, As Well As Of Naming And Dis ...

Of Tue Tides
Of Tue Tides. The Ebbing And Flowing Of The Sea Was First Shown By Kepler To Be Owing To The Moon's Attraction, And Newton Demon Strated It Upon The Principles Of Gravita Tion. The Attraction Of The Moon Cannot Alter The Shape Of The Solid Of The Globe ; But ...

Of The
Of The Reticule Organs. The Urine Is Secreted In Two Large Glands, Called The Kidnies. These Are Situated Behind The Peritoneum, In That Part Of The Abdomen Termed The Lumbar Region, Where They Are Surrounded By A Quantity Of Loose Cellular And Aclipous Substance. Their Form Resembles Pretty Exactly That ...

Of The Figure And
Of The Figure And Motion Of The Earth. The Earth, As We Have Observed, Was Long Considered As A Large Circular Plane, Spreading Out On All Sides To An Indefinite Distance ; But It Is Now Ascertained That It Is Of A Spherical Figure, Nearly Resembling That Of A Globe. ...

Of The Fructification Of
Of The Fructification Of Plants. Under The Term Fructification Are Com Prehended, Not Only All The Parts Of The Fruit, But Also Those Of The Flower, Which Last Are Indispensable For The Perfecting Of The Former. All These Organs Are, There Fore, Essential To A Vegetable, Winch May Be Deficient ...

Of The Leaves
Of The Leaves. The Leaf, Folium, Fig.16 And 17, Is A Very General Organ Of Vegetables, Yet Not Absolutely Necessary To All Plants, For The Stems And Stalks Occasionally Perform Its Functions. What Those Functions Are We Shall In A Compendious Manner Explain Leaves Are Generally So Formed As To ...

Of The Marrow
Of The Marrow. This Is Of An Oily Nature. It Hardens When Cold, In Herbaceous Animals ; But It Remains Fluid In Those Which Are Carni Vorous. It Has A Reddish And Bloody Ap Pearance In Young Animals; But This Soon Goes Off. It Is Contained In Fine Membra Nous ...

Of The Primary Faculties
Of The Primary Faculties Or The Mind. 4. That, Whatever It Be, Which Thinks, And Feels, And Wills, Is Called Mind : That Part Of The Human- Being Which Thinks, And Feels, And Wills, Is Called The Human Mind. 5. We Observe Without Us And Within Us Numerous Phenomena ; ...

Of The Secondary Powers
Of The Secondary Powers Of The Atind. 104. We Did Not Set Out With The Hope Of Giving A Complete Outline Of The Most Extensive Subject Of This Article ; But Our Readers Will Probably Think Us Unneces Sarily Deficient, If We Say Nothing Respect Ing Memory, Conception, Judgment, At ...

Of The Solar System
Of The Solar System. It Is Fully Proved That The Planets, With The Earth Which We Inhabit, And Also The Moon, Revolve Round The Sun, Which Is Fixed In The Centre Of The System. There Are Two Kinds Of Planets, Primary And Secondary. The First Move Round The Sun, And ...

Of The Stems And
Of The Stems And Stalks Of Plants. Botanists Reckon Seven Kinds Of Stems Or Stalks Of Plants. 1. Caulis, A Stem, Fig. 9. Properly So Call Ed, Bears Both Leaves And Flowers, As The Trunks And Branches Of All Trees And Shrubs, As Well As Of Many Herbaceous Plants Besides. ...

Of The Veins
Of The Veins. The Blood Is Constantly Movink In The Arteries From The Trunks Into The Branches; In The Veins It Follows A Directly Opposite Course, And Flows From The Branches To The Trunks. There Are Seven Large Venous Trunks In The Body-, To W1.11 All The Blood Is Return ...

Office
Office, Is That Function, By Virtue Of Which A Person Has Some Employment In The Affairs Of Another. An Office Is A Right To Exercise Any Public Or Private Employ Ment, And To Take The Fees And Emolu Ments Belonging To It, Whether Public, As Those Of Magistrates ; Or ...

Ogive
Ogive, In Architecture, An Arch, Or Branch Of A Gothic Vault ; Which Instead Of Being Circular, Passes Diagonally From One Angle To Another, And Forms A Cross With The Other Arches. Oil. The General Character Of Oils Are Combustibility, Insolubility In Water, And Fluidity. From The Peculiar Properties Of ...

Ology Idea
Idea,ology. The Philosophy Of The Human Mind. We Are Conscious Of Our Own Existence ; And In This Consciousness We Perceive A Certain Variety Or Succes Sive Change, Which We Distinguish By The Name Of Thought. It Seems As If It Would Be A Vain Attempt To Investigate By What ...

On Simple Eruations
On Simple Eruations. If One Quantity Be Equal To Another, Or To And This Equality Be Expressed Algebraically, It Constitutes An Equation. Thus, Xa =bx Is An Equation, Of Which Xa Forms One Side, And B X The Other. When An Equation Is Cleared Of Frac Tions And Surds, ...

On The Apparent Motions
On The Apparent Motions Of The Venly Bol I Es. Having Given A Very Brief Sketch Of The History Of This Science, Than Which, Few, If Any, Have Higher Claims To Our Venera Tion And Regard, We Proceed To Consider The Science Itself, Intending To Present The Reader With A ...

On The Incubated Egg
On The Incubated Egg. The Various Vital Processes Of Nutrition And Formation, Which Are Carried On In The Foetus Of The Mammalia While In Its Mo Ther's Body, And By Means Of The Most Intimate Connection With The Parent, Are Effected In The Incubated Chick By Its Own Powers, Quite ...

On The Multiplication And
On The Multiplication And Division' Of Fractions. To Multiply A Fraction By Any Quantity, Smiltiply The Intmerator By That Quantity, And Retain The Denominator. Thus, Ix C= A C. For If The Quantity To Be Divided Be C Times As Great As Be Fore, And The Divisor The Same, The ...

Oniscus
Oniscus, In Natural History, A Genus Of Insects Of The Order Aptera. Jaw Trun Cate Denticulate ; Lip Bifid ; Antenna From Two To Four, Setaceous ; Body Oval, Consist Ing Of About Fourteen Transverse Seg Ments ; Fourteen Legs. These Insects Feed On Animal And Vegetable Matter; And They ...

Opacity
Opacity, In Philosophy, A Quality Of Bodies Which Renders Them Impervious To The Rays Of Light. It Has Been Suppos Ed That Opacity Consists In This, That The Pores Of The Body Are Not All Straight. 'phis Doctrine, However, Is Deficient: For Though To Have A Body Transparent, Its Pores ...

Opium
Opium, In Chemistry And Medicine, An Inspissated Gummy Juice, Which Is Ob Tained From The Head Of The " Papaper Somniferum." It Is Imported From Per Sia, Arabia, And Other Warm Parts Of Asia, In Flat Cakes, Covered With Leaves To Pre Vent Their Sticking Together. It Has A Reddish ...

Or Accessary
Accessary, Or Acctssons, In Com Mon La.w, Is Chiefly' Used For A Person Guilty Of A Felonious Offence, Not Princi Pally, But By Participation ; As,by Advice, Command, Or Concealment. There Are Two Kinds Of Accessaries ; Before The Fact, And After It. The First Is He Who Commands, Or ...

Or Alkoran Alcoran
Alcoran, Or Alkoran, The Name Of A Book Held Equally Sacred Among The Mahometans As The Bible Is Among Chris Tians. The Word Alcoran Properly Signifies Reading; A Title Given It By Way Of Emi Nence, Just As We Call The Old And New Testament ,scriptures. That Mahomct Was The ...

Or Aloes Aloe
Aloe, Or Aloes, In Pharmacy, The In Spissated Juice Of The Aloe Perfoliata, Asi Atic Aloe, Prepared In The Following Man Ner: From The Leaves, Fresh Pulled, Is Pressed A Juice, The Thinner And Purer Part Of Which Is Poured Ofd; And Set In The Sun To Evaporate To A ...

Or Ambassador Embassador
Embassador, Or Ambassador, Si Public Minister Sent From One Sovereign Prince, As A Representative Of His Person, To Another. Embassadors Are Either Ordinary Or Ex Traordinary. Embassador In Ordinary Is He Who Constantly Resides In The Court Of Another Prince, To Maintain A Good Under Standing, And Lool- To The ...

Or Antiivedob6pt1sts Baptists
Baptists, Or Antiivedob6pt1sts, In Church History, A Considerable Sect, Who Are Distinguished From Other Chris Tians By Their Opinions Respecting Bap Tism, And Who Maintain That The Ordinance Must Be Administered By The Immersion Of Adults, And Not By The Sprinkling Of In Fants. Such They Say Is The Meaning ...

Or Appendages Of Plants
Of The Fulcra, Or Appendages Of Plants. There Are Various Appendages To The Herbage Of Plants, All Of Which Are Com Prehended By Linnxus Under The Term Of Fulcrum, A Prop Or Support, Which Term In Its Literal Sense, However, Applies But To A Few Of These Organs. 1. Stipula. ...

Or Arch
Arch, Or Ace, In Geometry, Any Part Of The Circumference Of Acircle, Or Curved Line, Lying From One Point To Another, By Which The Quantity Of The Whole Circle Or Line, Or Some Other Thing Sought After, May Be Gathered. All Angles Are Measured By Arcs. For This Purpose An ...

Or Armoivica Harmonica
Harmonica, Or Armoivica, Is A Name Which Dr. Fanklin Has Given To A Musical Instrument Constructed With Drinking Glasses. It Is Well Known That A Drinking Glass Yields A Sweet Tone, By Passing A Wet Finger Round Its Brim. Mr. Pockrich, Of Ireland, Was The First Who Thought Of Play ...

Or Asarabacca Asarum
Asarum, Or Asarabacca, In Botany, A Genus Of Plants Without Any Leaves, And Belonging To The Dodecandria Monogynia Class Of Linnzus. Its Fruit Is A Coriaceous Capsule, Divided Into Six Cells, And Containing A Great Many Oval Seeds. There Are Three Species. The Common Asarabacca Is A Native Of Many ...

Or Azote
Azote, Or Nitrogen, In Chemistry, A Gas That Forms The Unrespirable Part Of The Atmospheric Air, And It Exists In The Proportion Of About 78 Per Cent, By Bulk, Or 74 Per Cent. In Weight. The Proper Ties By Which This Gas Was First Distin Guished Were Principally Negative, In ...

Or Balsam
Balsam, Or Native Balsam, An Oily, Resinous, Liquid Substance, Flowing Either Spontaneously, Or By Means Of Incision, From Certain Plants Of Sovereign Virtue In The Cure Of Several Disorders. The Term Balsam, Or Balm, Was Origin Ally Confined To A Thick Fragrant Juice, Ob Tained From The Amyris Gileadensis, And ...

Or Bambou Bamboe
Bamboe, Or Bambou, A Plant In The Indies Which Multiplies Very Much By Its Root, From Which Springs A Branchy Tuft, After The Manner Of The European Reeds. It Is Of The Largest Kind Of Cane, And Decreases Gradually To The Top, Where It Bears A Blossom Like Our Reeds. ...

Or Bissextile
Bissextile, Or Leap-year, A Year Con Sisting Of 366 Days, And Happening Every Fourth Year, By The Addition Of A Day In The Month Of February, When That Year Consists Of 29 Days. And This Is Done, To Recover The 6 Hours Which The Sun Takes Up Nearly In His ...

Or Brute
Brute, Or Beast, A Term Generally Ap Plied To Quadrupeds, And Also To Other Animals, And Implying Inferiority Of Intel Lect. Among Brutes, The Monkey Kind, Both In The External Shape, And Internal Struc Ture, Bear The Nearest Resemblance To Man. In The Monkey Kind, The Highest, And The Most ...