114 



In Darwin's experiments with meat, creatin (and presumably 

 the other nitrogenous extractives of meat) had seemingly no in- 

 fluence. 



General Conclusions 



The results of these experiments indicate the ready digestibility 

 of dry egg-white, fibrin, tendomucoid, and nucleoprotein. Acid- 

 albumin, alkali albuminate, and edestin were digested, but some- 

 what less readily than the products first named. Collagen and 

 elastin appeared to be entirely indigestible. Even when moistened 

 with meat extract the elastin particles failed to undergo digestive 

 alteration. Creatin did not cause bending of the tentacles. 



These observations cannot be directly compared with Darwin's 

 because Darwin dealt with mixtures or crude products. 



The proteolytic enzymes of Drosera are, like those of other 

 organisms, able to digest some proteins and unable to digest 

 others. 



New York Botanical Garden 



SPECIES OF GYMNOSPORANGIUM IN SOUTHERN 



ALABAMA 



By R. E. Stone 



While connected with the Alabama Agricultural Experiment 

 Station I became interested in the distribution of certain fungi, 

 especially species of Gyninosporanghim. The presence of sev- 

 eral species of cedar as well as many species of the Pomaceae 

 would indicate that many species of the genus Gyninosporaiigium 

 might be found. 



Up to the present time the species reported for Alabama are : 

 Gymnosporangiiini niacropus Link, G. globosum Farl., G. Clavipes 

 C. & P., G. flaviforme Atk., and G. Nidus-avis Thax. All of 

 these are reported as occurring on Sabina virginiana (L.) 

 Antoine. 



The presence of CJiainaecyparis thyoides (L.) B.S.P. and also 

 of Amelanchier canadensis (L.) Medic, and Aronia (L.) Ell. lead 

 me to believe that Gynmosporangiiun biseptatum Ellis or Gymno- 



