MONOVERTICILLATA 253 



acids in samples of ascorbic acid leads to serious errors when the latter is 

 assayed by spectrophotometric method. 



Haworth, Raistrick and Stacy have published related studies on the 

 polysaccharides produced from glucose by Penicillium charlesii. In the 

 first of these (1935a), the molecular structure of mannocarolose was 

 reported, and upon acid hydrolysis, d-mannose was produced as the sole 

 hydrolytic product. In the second (1937), the molecular structure of 

 galactocarolose was reported and rf-galactose represented the sole product 

 upon mild acid hydrolysis. 



