50 Phosphate Rocks of South Carolina, 
Sea Island Cotton, by Dr. Ure. 
Carbonate of Potash, ; : : : . 44.8 
Muriate of Potash, . f : : ‘ Og 
Sulphate of Potash, . s é : : SAA 
Phosphate of Lime, . ; i : : . (9:0 
Carbonate of Lime, . : . $ : Ro (a Yo) 
Phosphate of Magnesia, . 5 : ; DOA. 
Peroxide of Iron, ; d ; : 3 Se 
Alumina, a trace, and loss, : : : LNEEIO 
100.0 
“ Although there is a considerable difference in the 
proportions of the ingredients present in the two 
varieties of cotton, as exhibited by these analyses, 
they both show the presence of all the leading and 
important salts.” (Tuomey.) 
Indian Corn, by Prof. Shepard. 100 parts of the grain 
left nearly 1 per cent of ash, composed of — 
Silica, : : 38.45 
Potassa, (with traces of Soda,) : ; {SNORE 
Phosphate of Lime, ; a 
Phosphate of Magnesia, 5 : : {. Maas 
Phosphate of Potassa, 2.24 
Carbonate of Lime, : : : : Y (iaeb@ 
Carbonate of Magnesia, : 1) eee 
Sulphate of Lime, . ; ; a Oe ts 79 
Silica mechanically present, . : . 8 ee 
Alumina, : ; ; : : : - abRaIGES 
iosss : . : ‘ ‘ ; . ONSROS 
