458 List of Articles of Materia Medica. [Oct. 



The ammon. precipitate of phosphate was digested in sulphuric acid, 

 and converted into sulphate : the filtered solution was then proved to 

 contain phosphoric acid by its behaviour with muriate of magnesia and 

 ammonia. The analysis was not carried farther than to the demonstra- 

 tion of the presence of he phosphates generally, and their amount in 

 round numbers. 



The Ava fossil bones were found to be mineralized also, and to have 

 lost their animal matter, but they differ again from either the Hima- 

 layan or the Jabalpur fossils in regard to the mineralizing substance, 

 and are of two distinct kinds. 



4. The first, a dark brown heavy substance, is impregnated with 

 iron clay, yielding on analysis, 



Carbonate of lime, 25.1 



Phosphate of lime dissolved in nitric acid, *... 34. > 100. 

 Silex and oxide of iron, &c. — not dissolved. . . 41,3 



5. The second or earthy bone from Ava proved to be wholly con- 

 verted into carbonate of lime, colored merely with a little clay-iron of 

 a dirty greyish brown. 



VI. — List of Articles of Materia Medica, obtained in the Bazars of the 

 Western and Northern Provinces of India. By J. F. Royle, Esq. 

 late Superintendent of the Botanic Garden, Sehdrunpur. 



The following table was by no means drawn up with a view to 

 publication ; thinking it however eminently fitted to assist naturalists in 

 India in pursuing their investigations of the natural products of the 

 country, we obtained the author's permission to make use of it as it is. 

 In the 11th volume of the Asiatic Researches will be found a catalogue 

 of a similar nature, drawn up by Dr. Fleming and Professor Carey, 

 of such articles of Materia Medica, drugs, minerals, and plants as were 

 procurable in the bazars of Bengal, with notes of the uses and qua- 

 lities of many of them. The present table contains very numer- 

 ous articles foreign to that list, and to these provinces altogether ; 

 and besides the advantage of the progress of botanical knowledge 

 since that time, the plants of many of the drugs not cognizable by 

 their external appearance have been procured and cultivated by Dr. 

 Royle in the Saharunpur Garden, to ascertain their real nature, and to 

 compare them with the description given in the works of Aristotle, 

 Dioscorides, Pliny, Avicenna, and the ancient Arabic authors. These 

 remarks relate more particularly to the voluminous catalogue of plants, 

 &c. taken home by Dr. Royle, which we hope ere this has been put 

 into the publisher's hands ; but the present epitome of such substances 



