REPORT OF VICE-DIRECTOR 149 



stand, triple nose-piece, three objectives, complete sub-stage 

 attachment, and attachable mechanical stage; an Abbe's oleo- 

 refractometer with heating attachment; and fifty sets of elec- 

 trodes for soil-moistnre measurements. 



Additional insect cases and bookshelves have been built, 

 and the files of bulletins and periodicals have been bound 

 as far as practicable, up to the current year. 



Departmen^t of Chemistry 



The experimental investigations of the department of chem- 

 istry have been confined to studies of silage, apples, and pota- 

 toes. An unusually large amount of work has been done for 

 the state board of agriculture, and the usual number of mis- 

 cellaneous samples have been analyzed for the public. 



Ninety-seven brands of fertilizers were analyzed for the 

 board of agriculture as a part of the annual inspection of com- 

 mercial fertilizers, and the results will be published in a bul- 

 letin in January next. The department also assisted the 

 board in enforcing the oleomargarine laws, and examined, in 

 the course of the work, 282 samples of butter and oleomar- 

 garine. 



Of the miscellaneous analyses made for individuals, the fol- 

 lowing have been selected for publication in this report: 



City Stable Manure 



A sample of city stable manure was sent to the station, April 

 25, from Concord, by Hon. J. B. Walker, president of the board 

 of agriculture. The sample measured one cubic foot in vol- 

 ume, weighed 38J pounds at the laboratory, and was consid- 

 ered to represent an average lot of manure of its class. 



The analysis of the sample gave the following results in per- 

 centage composition, and in pounds of fertilizing constituents 

 per ton, and per cord weighing approximately 2J tons. 



Per ct. Lbs. per toil. Ll)s. ix-rcord 



Water 70.00 1,400.0 3,500.0 



Organic matter . . . 20.70 414.0 1,035.0 



Nitrogen, total . . . 0.69 13.8 34.5 



