II. 



analysp:s of commercial fertilizp:r.s and manur- 



lAL substances SENT ON FOR 

 EXAMINATION. 



554-556. 



WOOD ASHES. 



I. Seut on by F. H. 

 II. Seut on by C. H. 



Williams, Sunderland. Mass. 

 Thompson & Co., Boston, Mass. 



III. and IV. Sent on from Amherst, Mass. 



Moisture at lOOoC, 

 Phosphoric acid, 

 Magnesium oxide, 

 Calcium " 



Potassium " 



Insoluble matter, (before calcination), 

 " (after " ), 



557-559. 



WOOD ASHES. 



VI. Seut on by S. 



VII. Sent on by J. 



VIII. Sent on by D. 



M. Farnsvvorth, Harvard, Mass. 

 J. H. Gregory, Marblehead, Mass. 

 G. Lang, Concord, Mass. 



