22-^ ACCOUNT OF NEW BOOKS. 



Analytical ated Soda. 79. Analyfis of the native Muriate of Ammoniac. 

 ^^** 80. ExaminBtion of Saffolin. 81. Examination of the Plumofe 



Alum from Freyenvvaide. 82. Capillary S»lt (Halotrichiura) 

 from Idria, 83. Elaftic Bitumen, from Derbyfliire. 84'. Ex- 

 amination of Mellililo. 85. Umbra (Umber). 86. Examin- 

 ation of the muriated Lead Ore. 87. Phofphated Lead Ores. 

 88. Sulphated Lead Ores, 89. Tabular, White Lead Ore, 

 from Leadhills. 90. Examination of the native Reguline 

 Antimony, from Andreaflierg. 91. Antimoniated Silver, 

 from Andrealberg. 92. Fibrous red Antimonial Ore. 93. 

 White Ore of Antimony. 94. Arjeniuted Olive Copper Ore. 

 95. Muriated Copper Ore. 96. Phofphated Copper Ore. 

 97. Kryulite. 98. Beryl. 99. Emerald. 100. Examination 

 of Klingftone (Echodolite). 101. Bafalt (Figurate Trapp). 

 102. Pitch Stone. 103. Addition to the Analyfis of Pumice 

 Stone (ElTay 33). 104-. Examination of the Jargon (Zircon) 

 from Norway. 105. Examination of Madreporite. 106. 

 Pharmacolite. 107. Scorza. 108. Examination of the Fi- 

 bruous Sulphate of Barytes. 109, Tabular Spar (Safel-fpath), 

 110. Examination of Miemite. 111. Examination of the 

 pHfmaiic, Magnefian Spar, from the Territory of Gotha. 1 1 2. 

 Examination of the ftriated grey Ore of Manganefe. 113. 

 Earthy, black Oxyd of Manganefe. 114. Examination of 

 the Afphaltum from Albania. 115. Earthy brown Coal. 

 116. The Hungarian Pearl Stone. 



*^* W. N. acquaints G. S. that the fuppofitlon of Du 

 Hamel, that what was called mild volatile alkali contains 

 chalk, arofe from a want of knowledge of the carbonic acid 

 at the early period alluded to in his letter. The additional 

 weight in the carbonate of ammonia arifes from carbonic acid, 

 and there is no reafon to fufped any volatilization of the earth 

 during its preparation. If any were prefent, it might be de- 

 leted by fulphuric acid, or, in preference, by oxalic acid^ 

 either of which would carry down the lime. 



