319 



The antlior concludes, with regard to the relation of the parts, that 

 " (1) in an average cro]) of Indian corn the ear is by weight approxi- 

 matelj- one half of the entire crop; (2) about four fifths of the ear is 

 grain ; and (3) about one half of the stover is stalk." 



The cowpea as a forage crop (pp. 169-179). — This is a chemical study 

 of the cowpea plant with reference to botli food and fertilizing ingre- 

 dients. The composition (including fertilizing ingredients) is given 

 of i>ea-vine hay cut when in bloom, when the pods were forming, and 

 when the pods were formed; the fertilizing ingredients in the roots and 

 stubble are stated; and the hay is compared with oats (grain and straw) 

 and corn (kernels and stover) with regard to composition and the total 

 yield of nutrients, digestible nutrients, and fertilizing ingredients per 

 acre, assuming a yield of 10 bushels of oats, 30 bushels of corn, and 3.6 

 tons (the yiehl observed) of cowpea vines. 



The pea crop lacks ouly 481 pounds of containing as much digestible organic mat- 

 ter as the other two crops combined. It contains five times as much crude protein 

 and fat (the most valuable constituents of feeding stuffs) as eitiier oats or corn, and 

 three times as much as their sum. To equal the yield of the cowpea vines in 

 digestible protein (976 pounds) would require 300 busliels of oats including the 

 straw, or 175 bushels of corn including the fodder. 



Of digestible carbohydrates the pea affords nearly twice as much as the oats and 

 a little more than the corn. It must be borne in mind that the figures given for oats 

 and corn represent the entire crop, the straw and stover being included. 



The relative amounts of fertilizing ingredients per acre contained in 

 the above-mentioned crops are given as follows : 



Fertilizing constituents in crop per acre. 



Oats ICom (ker- 

 (jpain and; nels and 



Cowpea 

 vines. 



straw). 



stover). 



Nitrogen 



Phosphoric acid. 

 Potash 



Valuation . 



Pounds. 

 :m 



155 



Founds. 



Pounds. 

 35 45.0 



12 U.4 



48 45.9 



$41. 82 



$8.55 



$10. 14 



As the cowpea obtains a part of its nitrogen from the atmosphere and a part, 

 together witli some of its phos])horic acid and potash, from the sulisoil, the large 

 amount of these coustitueuts left in its roots and stubble, and dead leaves cb'ox)ped 

 by the plant, tend to eurich instead of impoverish the soil; in other words, its 

 power of collecting and storing fertilizing materials from sources beyond the reach 

 of the cereals makes the cowpea a valuable remedial crop. 



Composition ofsoja beans (pp. 179, 180), — Analyses (including fertiliz- 

 ing constituents) of soja-bean vines and of hulls and vines after the 

 beans had been threshed. 



Report of Veterinarian, W. B. Kiles, D. V. M. (pp. 181-192). — 

 A reprint of an account of investigations on hog cholera, published in 

 Bulletin N"o. (new series) of the station (see Experiment Station 

 Kecord, Vol. i, p. 312), with brief statements regarding experiments with 



