460 SCIENCE PROGRESS. 



references are given in BischofFs Handbtich^ and in the 

 work of Van't Hoff so often cited. In English there is an 

 earlier edition of Van't Hoff translated by Marsh ; and in 

 the brief Guide to the subject by the present writer there 

 is also an index to the literature. 



Correction. On p. 502 the formation of active glyceric 

 acid by means of bacillus ethacetiais was, in accordance with 

 the reference given by Van't WoR {Atome im Raume, p. 23), 

 attributed to Tutton, instead of to Frankland and Trew 

 (Journ. Chem. Soc, lix., 96). The acid formed is right- 

 handed ; the salts, of which Tutton [ibid., p. 233) ex- 

 amined one, being left-handed. 



Arnold Eiloart. 



1 Frankfurt-a-M., 1893-94. H. Bechhold. 



