16 Journal of the Mitchell Society [December 



A Photometric Study of the Fluorescence of Iodine Vapor. W. E. Speas. 



Breeding Results from Overwintering Cocoons of the Polyphemus Moth. 

 C. S. Brimley. 



Neiv North Carolina Gall Types. B. W. Wells. 



Solid Culture Media with a Wide Range of Hydrogen and Hydroxyl Ion 

 Concentration. F. A. Wolf and I. V. Shunk. 



Judgments of Length, Alass, and Time. A. H. Patterson. 



Effects of Desiccation on Cotton Seeds and on the Seed-horrie Element of 

 Cotton Anthracnose. S. G. Lehman. 



Chlorination with the Silent Electrical Discharge. Paul Gross. 



The Electron, its Measurements and Applications. J. B. Derieux. 



Some Questions Concerning the Teaching of Physics in North Carolina. 

 C. W. Edwards. 



Questions Arising from the Discovery of Occasional Vertebrate Herm- 

 aphrodites with a Demonstration of a Case in a Pig. Harley N. 

 Gould. 



The Anatomy of Angiopteris. H. L. Blomquist. 



Further Studies on the Pure Culture of Diatoms. Bert Cunningham 

 and J. T. Barnes. 



Aphidius, a Parasite of the Cotton Louse. H. Spencer. 



Notes on the Salamanders of the Cayuga Lake Basin, N. Y., with Refer- 

 ence to Eggs and Larvae. Julia Moesel Haber. 



A Method of Differentiating Mucous and Serous Cells. Eva Gal- 

 braith Campbell. 



Recent Views on the Nutritive Qualities of Milk. J. 0. Halverson. 



Relationship of Temperature and Relative Humidity to the Distribution 

 of Cockroaches. Vernon R. Haber. 



From Egg to Frog in two Months. H. V, Wilson. 



The following papers were read by title only, in the absence of 



their authors: 



On the Polyembryonic Development of the Parasite, Copidosoma gelechiae. 

 R. W. Leiby. 



The Lorentz Transformation in Einstein Relativity. Archibald Hen- 

 derson. 



The Inheritance of Economic Qualities in Cotton. R. Y. Winters. 



Notes on Recently Discovered Miocene Whale. William F. Prouty. 



The following paper was transferrred to the Chemical and Physical 

 program : 

 Ionizing Potentials of Gases by Negative Electrons. A. A. Dixon. 



C. S. Brimley, Acting Secretary. 



