12 



Potassium oxide, 8.816 



Magnesium oxide, - 1,395 



Calcium oxide, 3.720 



Phosphoric acid, .726 



This article is valuable for fertilizing purposes, — and deserves the 

 special attention of tobacco-growers ; its trade value of fertilizing 

 constituents amounts from $15.50 to $16 per ton of 2000 lbs. at cur- 

 rent rates of valuation. 



259. Material taken from a Ditch in a Diked Marsh at East Salis- 



bury, Mass. Sent on for examination. 



Per Cent. 



Moisture at 100° C, 33.40 



Organic and Volatile Matter, 92.15 



Ash, 7.85 



Ash soluble. 4.20 



Ash insoluble, 3.65 



Nitrogen (in organic matter), 1.64 



Phosphoric acid, 0.13 



Potassium oxide, 0.26 



Calcium oxide, 1.24 

 This material is quite rich in manurial substances, and equal in 

 that respect to the better quality of peat. 



260. LIME KILN ASHES. 



(-Collected at Holyoke, Mass.). 



Per Cent. 



Moisture at 100'^ C, 30.70 



Calcium oxide, 37.55 



Magnesium oxide, 3,68 



Potassium oxide, 1.70 



Phosphoric acid, 1.27 ' 



Carbonic acid, 17.83 



Ihsoluble matter, 3.30 



Sold at 22 cents per bushel. 

 The material is a fair sample of its kind. 



261. SALTPETER WASTE. 



Sent on from Acton, Mass. 



Per Cent. 



Moisture at 100° C, 0.50 



Sodium oxide, 44.93 



Potassium oxide, (largely chloride) 4.65 



Nitrogen (in nitrates) , 1.87 



The sample represents a trade value from $10 to $11 per ton, and 



will prove quite effective upon grass lands and in case of forage crops 



in general. 



C. A. GOESSMANN, Director, 



Amherst, Mass. 



