Fourcroy Antony Francis

Many'of these earlier papers have also been print ed in the Annales de Chimie, but they are sometimes altered, and they are mixed with others, which are original. 50. On Azote, (20), Vol. I. (1789). This memoir exhibits no very favourable specimen of the author's accuracy; for he asserts in it that pure azote turns vegetable blues to green, and that it may be obtained by means of a low heat, from the oxyd of manganese. 51. On the gas in the air vessels of the carp. 52. On a morbid change in the blood, Ib.; exuding from the face. 53. On detecting lead in wine (21) Ib. 54, 55. On two ores of lead, II.; containing the arseniate and the phosphate. 56. On the action of oxyds on ammonia, Ib. ; particularly those of manganese, mercury, and tin. 57. On the salts of magnesia, lb. .58. On a change in the liver after death, (25), III. 59. On binary calculi, lb. ; describing the adipocere of these substances.

60. On the albumen of vegetables, lb. more proper ly distinguished by Proust under the name of gluten.

61. On the carbo;:ate of barite of Alston Moor, IV. 62. On the medical properties of oxygen, lb. 63. On the triple salts of ammonia and magnesia, ; an elaborate and interesting paper. 34. On combustions in osymuriatk acid gas, lb. 65. On the effect of oxygen in colouring vegetables, and on the preparation of solid pigments, V. 66. On the changes observed its the cemetery of the Innocens, lb. Fourcroy had been appointed, together with Thou. ret, to superintend the removal of these remains to a remoter spot, and observed that the muscular parts were often slowly changed into a substance nearly resembling spermaceti. 67. On a black sand from St Domingo, VI. 68. On the water of Enghien, (2). Ib. 69. Discoveries in animal and vegetable che mistry, lb. 70. On the formation of the nitric acid from the action of the oxyd qf mercury on ammonia, (29). Ib. 71. On the culture of cloves in the Isle of Bourbon, VII. 72. Experiments on animal substances, made at the Lyceum, in 1790, (24). lb. 73. Second memoir on the substances found in the cemetery. 74. On the cinchona of St Domingo, VIII. X. ; a very valuable analysis of a species of bark officially referred to his examination.

75. On the combustion of hydrogen,

(30). VIII.

76. Report on Loyser's art de in verrerie,

IX. 77, On bell metal, lb. ; the principal object of this pa per is to discover a ready mode of converting the spoils of the churches into copper coin, by fully oxy dating a part of the alloy, and fusing the remainder with it ; the whole of' the tin becomes oxydated, and the copper is melted out in a state of purity. 78. On tears and mucus, X. ; a valuable investigation of the nature of the substances most generally dif fused in the animal fluids. 75. On the sulfite of mercury and its combination with ammonia, Ib. a paper containing several new facts, though mixed with some inconclusive reasoning. 80. On the re• finement of saltpetre, XI. 81. On the juice which furnishes elastic gum, lb. 82. Note on the decom position of the carbonic acid gas, effected by Mr Tennant, XII. 83. On triple salts, XIII. 84. On animal concretions, from the Dictionnaire Encyclo pedique. 85. On the brain, XVI. 86. Report on some artificial pencils; XX. 87. Extract of a Me moir on hydrocarbonous gas, and on the supposed combustion of azate, XXI; showing that, though phosphorus is soluble in azote, it is only so far burn: ed in it as some particles of oxygen happen to be present. 88. On detonations by percussion, Ib. 89. Extract of a memoir of Proust, on odoriferous sub stances, lb. : Mr de Fourcroy proved the non-exist ence of any separate principle deserving the name of aroma, and showed that odorous substances, in ge neral, were volatilised without any change of their nature, or separation of their parts. 90. On obtain ing pure barite, lb.; an elegant and effectual pro cess. 91. On the union of chemistry milk phar macy, lb. 92. On vitality, and on Humboldt's expe riments, XXII. 93. On the action of the sulfuric acid on vegetable and animal substances, XXIII. 94. On the formation of the sulfuric Ether, lb.

This paper seems

to make it probable that the at. traction of the acid for water tends to facilitate the formation of the ether in this instance, though the same theory cannot be applied to the action of the other acids on alcohol. 95. On the sulfurous acid,