Wood Engraving
Wood Engraving Is The Art Of Pro Ducing Raised Surfaces, By Excisjon, On Blocks Of Wood, From Which Impressions Can Be Trans Ferred By Means Of A Coloured Pigment To Paper, Or Other Suitable Medium, And Gene Rally Applied To Pictorial Representations Of Objects. The Art Of Cutting Both Upon ...
Wool Wool Trade
Wool; Wool Trade. The Term 'wool' Is Now Applied Almost Exclusively To The Fleece Of The Sheep. The Distinction Between Wool And Hair Is More Easily Understood Than De Scribed. Wool Compared With Hair Is Generally Softer, More Flexible, And More Disposed To Undergo The Felting Process, Which Imparts To ...
Yorkshire
Yorkshire. This County Is Rich In Minerals. The Lower Red Sandstone, Or Ponte Fract Rock, Near Pontefract, Is Usually A Mass Of Yellowish Sands, Of The Greatest Excellence For The Use Of The Metal-founder In The Con. Struction Of His Moulds. From Beneath The Magnesian Deposits Rise The Sandstones, ;hales, ...
Zeolian Harp
.zeo'lian Harp, A Musical Instrument, The Sounds Of Which Are Drawn From It By A Current Of Air Acting On The Strings. One May Be Constructed As Follows :—let A Box Be Made Of Thin Deal, Of A Length Exactly Answer Ing To The Window In Which It Is Intended ...
Zinc
Zinc. This Metal, In Commerce Frequently Called Speller, Does Not Occur In The Native State, But Is Obtained From Its Ores, Which Are Chiefly The Sulphuret And Carbonate Of Zinc. Zino Has A Brilliant Metallic Lustre And A Bluish White Colour. It Is So Hard As To Be Filed-with Some ...