568 EXPERIMENT STATION RECORD. [Vol.43 



ferences In stability to heat of the three juices did not appear to he due to 

 their H-ion concentration. 



The growth curves recorded in these experiments furnisli evidence that 

 grovi'th is affected by the limitation of the antiscorbutic factor in the diet apart 

 from the appearance of definite symptoms of scurvy and apart from deficiency 

 in the growth-promoting vitamins. 



The stability of the swede and orange .iuice at temperatures above 100" is 

 thought by the author to be due possibly to the absence of air during the 

 process of heating in the autoclave. "This may well affect the rate of de- 

 struction, either directly by retarding oxidation or indirectly by the produc- 

 tion of stabilizing bodies. The rather suriirising stai)ility at 130° in the absence 

 of air suggests that there may be advantage in adopting methods of caiuiing 

 fruit or vegetables at temperatures above boiling point for as short a time as 

 possible to insure sterility. Further investigations into the value of canned 

 products would appear to be desirable." 



Orbital hemorrhage with proptosis in experimental scurvy, S. S. Zilva 

 and G. F. Still {Lancet [London], 1920, I, No. 19, p. 1008).— The authors re- 

 port a case of exoitthalmos and hemorrhage of the eyelids in a monkey which 

 had been fed for about two months on a scorbutic diet. Recovery was rapid 

 on the administration of double strength decitrated lemon .iuice as an anti- 

 scorbutic. Attention is called to the fact that the exopthalmos affected the 

 left eye, which is in agreement with the special tendency to a similar left-eye 

 infection in scorbutic infants. 



The apparent influence of a diet of carbohydrates on the pancreas rem- 

 nant of partially pancreatectoniized dogs, V. W. Jensen and A. J. Carlson 

 (Amer. Jour. Physiol, 51 (1920), No. 3, pp. Jf23-429). — From experiments 

 undertaken with the view of determining more definitely whether a carbo- 

 hydrate diet prevents pancreatic hypertrophy or induces pancreatic degeneration 

 after partial pancreatectomy, the authors conclude that while their results, 

 in general, support the view that a liberal carbohydrate diet tends to change 

 diabetes levis into diabetes gravis after partial pancreatectomy in dogs, the 

 question can be definitely settled by the statistical method only, using a large 

 number of animals. 



The view that the impairment of the pancreas in diabetes is a direct result 

 of physiological overstrain is considered untenable in view of the indications 

 from human and comiiarative physiology that starvation within limits tends to 

 re.iuvenate tissues in general. 



Hydrolysis of the muscle proteins of Loligo breekeri, Palinurus japoni- 

 cus, and Paralithodes camtschatica, T. Okuda, S. Uematsu, K. Sakata, and 

 K. Fujikawa {Jour. Col. Affr., Imp. Univ. Tokyo, 7 {1919), No. 1, pp. 39-54). — ' 

 Determinations are reported of the hydrolysis products of the muscle pro- 

 teins of L. breclceri, a raollusk and of Palinurus japonicus and Paralithodes 

 camtschatica, two Crustacea. 



The results of these studies, together with those of previous studies by 

 the senior author and collaborators and similar studies from the literature, 

 are summarized in a table which makes possible a comparison of the hydrolysis 

 products of mammals, birds, fish, Crustacea, and Mollusca. 



It is pointed out that while there are differences in the amounts of the 

 hydrolytic products of the various muscle proteins, these differences are more 

 marked in tlie case of the amino acids wliich can be synthesized in the animal 

 body than of the physiologically more inTi^ortant amino acids which can not be 

 synthesized. The quantity of lysin tended to be slightly larger and the arginin 

 smaller in the muscle proteins of the vertebrates than in those of the in- 

 vertebrates. 



