I9I3] 



Alfred P. Lothrop 



287 



It is particularly noteworthy that the curve for the Eudendrium 

 is intermediate in character between Tuhnlaria and Cassiopea. It 

 seems altogether certain that Loeb's curve can no longer serve as a 

 type, expressive of the behavior of organisms under varying condi- 

 tions of density of the sea water, and it is doubtful whether the 

 phenomenon can be expressed in a simple curve based on two vari- 

 able factors. It appears also probable that the relatively high con- 

 centration in which Cassiopea normally lives may be associated with 

 the high Optimum density for regeneration in this animal. It is also 

 probable that the minimal effects of increasing dilution may be an 

 adaptive response to the extreme dilutions to which Cassiopea is 

 normally subject. 



47. The procedure of Salomon and Saxl as a diagnostic test 

 for Carcinoma. I. Green wald. (Chemical Laborafory of the 

 Monte fiore Home, New York City.) The procedure of Salomon 

 and Saxl,^ proposed as a test for Carcinoma, was tried in a number 

 of urines. All were positive. The precipitates obtained were 

 filtered off, ignited, and weighed, with the results shown in the 

 appended summary. Total sulfur Was also determined. There was 

 no apparent relation between the amount of sulfur precipitated by 

 the Salomon-Saxl procedure, either absolute or relative to the total 

 sulfur, and the presence or absence of Carcinoma. 



48. On the relationship between the weight of the sugar 

 beet and the composition of its juice. J. Arthur Harris and 

 Ross AiKEN Gortner, {Carnegie Institution of Washington, Sta- 

 tion for Experimental Evolution, Cold Spring Harbor, L. /.) Al- 

 though the literature pertaining to work on the sugar beet is very 

 voluminous, but little attention has been paid to the relationships 



"Salomon and Saxl: Wiener klinische Wochenschrift, 191 1, xxiv, p. 449; 

 Deutsche medizinische Wochenschrift, 1912, xxxviii, p. 53. 



