No. 1, May, 1921] UNCLASSIFIED PUBLICATIONS 111 



MISCELLANEOUS, UNCLASSIFIED PUBLICATIONS 



B. E. Livingston, Editor 

 S. F. Trelease, Assistant Editor 



752. Anonymous. Turning a liability into an asset. Sci. Amer. Monthly 2: 129. 1920. — 

 The commercial possibilities of the water hyacinth (Eichornia crassipes) are discussed. — 

 Chas. H. Otis. 



753. Anonymous. [Rev. of: Spitta, E. J. Microscopy: the construction, theory, and use 

 of the microscope. 3d ed., xxviii + 5S7 p., 28 pi. John Murray: London, 1920.] Nature 106: 

 77-78. 1920. — In the present edition may be noted especially the reference to low power 

 objectives designed to give great depth of focus and a flat field. The book is illustrated by 

 a considerable number of new plates. — 0. A. Stevens. 



754. DuRAND, R. Bacteries et papier-monaie. [Bacteria and paper money.] Bull. Sci. 

 Pharm. 27: 357-358. 1920. — A single bill of paper money may contain as many as 100,000 

 bacteria. These belong chiefly to the bacteria of the intestinal flora, but bacilli communi- 

 cating contagious diseases were also found. — H. Engelhardl. 



755. Ingle, Harry. The oil industry. [Rev. of: Martin, Geoffrey. Animal and vege- 

 table oils, fats, and waxes: their manufacture, refining, and analysis, including the manufac- 

 ture of candles, margarine and butter. A practical treatise, x + 218 p. Crosby Lockwood 

 and Son: London, 1920.] Nature 106: 43-44. 1920. 



756. SiMMONDS, C. Possible new sources of power alcohol. Nature 106: 244-245. 1920. 

 — Two reports of British committees are referred to. Foodstuffs will probably be too valu- 

 able for yet some time for use on any large scale as sources of alcohol. It has been suggested 

 that there is in Ireland considerable waste land which could be used for crops to be used in 

 this way, and some work has been started in this direction. In tropical regions cassava, 

 arrowroot, and maize might be practicable. One plant (Polymmia edulis) from the Andes 

 is said to be under trial in France. Utilization of cellulose materials, such as straw and saw- 

 dust, is also considered. — 0. A. Stevens. 



757. Slade, R. E., and G. I. Higson. A simple apparatus for high-power photomicrog- 

 raphy. Sci. Prog. [London] 14:645-646. 1920. — An apparatus designed for the rapid pro- 

 duction of photomicrographs of emulsions. — J. L. Weimer. 



758. Springer, J. F. Water pipes of wood. Sci. Amer. 123 : 250, 262, 264. 3 fig. 1920. 



759. Tevis, M. Forty centuries ago— and now. Sci. Amer. 123 : 397. 1920.— The paper 

 concerns the possibility of again making paper from Papyrus. — Chas. H. Otis. 



760. Winters, S. R. Binder twine from Florida. Sci. Amer. 123:379. 2 fig. 1920.— 

 A brief article on sisal. — Chas. H. Otis. 



