RECENT AMERICAN WORK ON FEEDING STUFFS. 523 



of fat and increase.s the acidity of the extracted fat. The author 

 claims that acidity of feeding stuffs is due to the presence of acid salts 

 and is no criterion of the quality of the feed or raw materials from 

 which it was made. 



The doti'rmination of sulphur and chlorin in plants was studied h}^ 

 G. 8. Fraps," and determinations of the sulphur content of a num- 

 ber of ve<>etal)le materials were reported b}^ the author and W. A. 

 Withers.'' 



The determination of pentosan-free crude fiber was studied by G. 

 S, Fraps.*' 



MANUFACTTJIIE OF FEEDING STUFFS. 



In their publications on the composition and value of feeding stuffs 

 a number of the stations have discussed the processes of manufacture. 

 Thus, fJ. B. Lindsey/' at the Massachusetts Station, described the man- 

 ufacture of concentrated feeds, and at the Penns^dvania Station W. 

 Frear'' described the processes of manufacture of commercial feeds. 

 At the Iowa station AV. J. Kennedy and F. W. MarshalU described 

 the processes of manufacture of tankage and similar materials which 

 are assuming some importance at the present time as a stock feed. 



CONDIMENTAL AND MEDICINAL. FEEDS. 



A large number of condimental and medicinal feeds are on sale in 

 the United States. Several of the State experiment stations have 

 analyzed such goods and have studied their value in proportion to 

 their cost and as compared with the claims made for them b}^ the 

 manufacturers. The work published during the period covered b}^ 

 this summary includes series of analyses by F. W. Woll,^ W. H. 

 Jordan and C. G. Jenter/' bj" the Connecticut State Station,' L. A. 

 Voorhces and J. P. Street,-' R. J. Davidson,* E. H. Jenkins et al.,' 

 W. Frear,'" B. W. Kilgore," and J. B. Lindsey.^ The general con- 



a North Carolina Sta. Rpt. 1902, pp. 42, 44. 

 h North Carolina Sta. Rpt. 1902, p. 53. 

 c North Carolina Sta. Rpt. 1902, p. 59. 

 t^Ma&sacliu.sett.s Sta. Bui. 78. 



« Pennsylvania Dept. Agr. Rpt. 1901, pt. 1, p. 559. 

 /Iowa Sta. Bui. 65. 

 r/Wiscon.«in Sta. Rpt. 1899, p. 271. 

 /'New York State Sta. Bui. UMi. 



« Connecticut State Sta. Bui. 1.32. Conn. Sta. Rpts. 1900, p. 355; 1902, p. 359. 

 iNew Jersey Sta. Bui. 158. 

 /•Virginia Sta. Bui. 107. 



/Connecticut State Sta. Rpt. 1901, jit. 4, p. 318. 

 "' Pennsylvania Sta. Rpt. 1901, ]\ 28. Pennsylvania Dept. Agr. liul. 107. 

 "North Carolina Dept. Agr. Bui. 24 (1903), No. 1, p. 78. 

 ^Maasachusetta Sta. Bui. 71. 



