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247. WiGGLEswoRTH, V. B., /. Exper. Biol. 10:1-15 (1933). Effects of salts on anal 

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248. WiGGLEswoRTH, V. B., /. Exper. BioL 10:16-26(1933). Salt absorption as func- 

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249. WiGGLEswoRTH, V. B., /. ExpcT. Biol. 15:235-247 (1938). Regulation of 

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252. Wolf, A. V., Ecology 19:233-242 (1938). Water balance in earthworms. 



253. Wolf, A. V., Physiol. Zool. 13:294-308 (1940). .Paths of water exchange in 

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254. YocoM, H. B., Biol. Bull. 67:273-276 (1934). Acclimatization of fresh-water 

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255. Zeuthen, G., Ztschr. vergl. Physiol. 26:537-547 (1939). Osmotic concentration 

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256. Zuelzer, M., Arch. Entwcklngsmech. 29:632-642 (1910). Effect of tonicity on 

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