16a 



for Hyg. 15: 183 (1893). On variations in amount of 

 oxygen required for different plant movements see 

 Correns,- Flora 75: 87, 97, 146 (1892). On variations 

 in oxygen requirement of various germinating seeds see 

 Takahashi, Demoussy and Akemine, loci citati on page 



, also Bert,- G. R. 76: 1493, .77: 531 (1873), 

 80: 1579 (1875); Rischawi,- Landw. Vers. Stat. 19: 321 

 (1876); Haze,- Ann. Inst. Pasteur, 14: 350-368 (1900); 

 Schaibbe,-Beitr. wiss. Bot. von Funfstick 4: 93 (1900); 

 Nabokikh,- Ber. deut. bot. Ges. 19: 222 (1901); Godlewski 

 and Polzeniusz,- Ann. Agron. 28: 151-165 (1902); Bude,- 

 Plora 92: 205 (1903); Crocker,- Bot. Gaz. 44: 375-380 

 (1907), Am. Jour. Bot. 3: 112 (1916); Becker,- Inaug. 

 Diss., Llunster, 1911; Gassner,- Jahrb. Ham. wiss. 

 Anstalt., Beih. 1, p. 29 (1911); Shull,- Bot. Gaz. 52: 

 453-477 (1911), 57: 64-69 (1914); Atwood,- Bot. Gaz. 

 57 : 38 6 (1914). On the exceptionally low respiration 

 of certain water and swamp plants see: Garreau,- loc . 

 cit. supra , also: de Saussure,- Recherches chimiques sur 

 sur la vegetation, Paris, 1804 (Ostwald's Klassiker, Uos. 



15 and 16 ); Preyberg,- Landw. Vers. Stat. : 463 



(1879); Devaux,- Ann. sci. nat. (7), 9: 35-40 (1889). 



