289 



v<il. IH, p. ir»3]. The influence wliicli an addition of an eqnal weight of nearly 

 mature soja beans exerts on the composition of corn silage will be seen from a 

 com|iaris(>ii of tlie following analyses: 



Composition of dry matter of com ailage and corn and soja bean silafje. 



Cniclonsh 



Cnuli' Cellulose 



I'm. If tat 



Crmlf in-i(fi-in.. 

 Nitn.jren-tVei! ej 



Total .... 



Corn 

 silage. 



Per cent. 

 G. 73 

 2ti. 9(1 

 :f 27 

 8.97 

 54.13 



100. 00 



Corn anil 



soja lii-au 



silage. 



Pi'r cent. 

 11.04 



27. 84 



5. 33 



14. 27 



40.50 



100. 00 



The plear corn silage was obtained from the same lot of fodder corn wliiih served 

 for the production of the mixed silage. The silos were in both cases filled in the 

 same way, and as far as practicable at the same time; they were of corresponding 

 size and contained fairly even quantities of vegetable matter. Both were opened 

 for general use at about the same time — 4 months after hlling. The samples wliicli 

 served for the analyses represent in each case the average of the silage obtained by 

 cutting in a vertical direction through the contents of each silo. The couii)osition 

 of the dry vegetable matter of the mixed silage comjjares well with that of a medium 

 quality of red clover hay. 



Massachusetts Hatch Station, Bulletin No. 15, October, 1891 (pp. 16). 



Experiments in greenhouse heating, S. T. Maynard, B. S. 

 (j)}). 3-7). — Keforence is made to previous experiments in which steam 

 and hot-water systems for heating greenhouses were compared, as 

 rei)orted in BnHetiiis iSTos. 4, 0, and 8 of the station (see Experiment 

 Station Record, vol. i, pp. 82 and 225, and vol. ii, p. 104). This article 

 contains an account of experiments in the two greenhouses previously 

 used, to test overbeuch as compared with underbench lieatiiig. The hot- 

 water system was used in both houses, and each house was divided into 

 north and south sections, "in the former of which were grown coleus, 

 roses, and other jdants requiring a high temperature, wliih:^ in the latter 

 were grown lettuce, carnations, and other plants requiring a lower tem- 

 perature." The results of an experiment begun December 1, 1890, and 

 ended April 12, 1(^91, are recorded in three tables. One of these contains 

 the daily record of the temperature of the house and the amount of coal 

 consumed for each day of January; the second gives the average tem- 

 peratures and the amounts of coal consumed for each month; the third 

 shows the distri])ution of heat through the houses during different 

 weeks. It was found that " while the average tenq)erature of the water 

 as it came from the boiler in the west house with pipes over the benches, 

 was 4.810 higher than that from the east boiler, where the pipes ran 

 under the benches, the house temperature was only 0.2.5° higher." Que 

 hundred and seventy-nine pounds more coal Avas consumed in the 

 west house than in the east one. The circulation of the hot water iu 



