Crystalline enzymes, the chemistry of pepsin, trypsin and bacteriophage: By John H. Northrop. New York, 1939. Columbia University Press. Price $3.00

History of explosives industry in Americ

History of explosives industry in America. By A. P. Van Gelder and H. Schlatter. With an introduction by Dr. C. E. Munroe. Pp. xxxviii+1132. Prepared from data collected by, and published under, the direction of the Institute of Makers of Explosives. New York: Columbia University Press; Humphrey Milford, Oxcord University Press, 1927. price 50s

✍ Weir, J. 📂 Article 📅 1927 🏛 Wiley (John Wiley & Sons) ⚖ 140 KB 👁 1 views

Hcalth with regard to scwernge nncl s c n ~~g c disposal worlrs for which n locnl authority scclts sanction to borrow money to bc rcpnicl over n p r i o d of ycnrs. The book is ~vcll linlnuccd and cnn be safely rccommended to the sturtcnt of civil engineering nnd to nll who wish to iindcrstnnd t.11