No. 3, April, 1921] UNCLASSIFIED PUBLICATIONS 333 



duction, distribution and uses. "Any laboratory may obtain pure ethyl alcohol tax free for 

 use exclusively in scientific research," according to present legislation in the United States,— 

 Ernest Shaw Reynolds. 



2270. WoLF-CzAPEK, K. W. Angewandte Photographie in Wissenschaft und Technik. 

 [Applied photography in science and technology.] 4 vols., illustrated. Union Deutsche Ver- 

 lagsgesellschaft: Berlin, 1920. 



2271. ZiLLiG, H. Kriegsersatz auslSndischer technisch verwerteter Pflanzenfasern. 

 [War substitutes for foreign utilizable plant fiber.] Jahresber. Ver. Angew, Bot, 16: 79-116 

 1918. 



