1922] Proceedings of Elisiia Mitchell Scientific Society 33 



toward the red end of the spectrum of rays of light emanating from 

 the sun, — had been conclusively established to a very close degree of 

 approximation by the eminent French physicist Perot. 



W. F. Prouty — The Rejuvenated Ocoee. 



J. M. Safford of Tennessee, described the Ocoee in 1856. He then 

 classed it as ''Metamorphic" and considered it of Pre-Cambrian age, 

 but in his report of 1869 he placed this group in the Potsdam (Cam- 

 brian). Arthur Keith after careful study of the western portion of 

 the Ocoee of Tennessee and North Carolina, confirmed Safford 's cor- 

 relation for the western portion and, like Safford, placed the entire 

 group in the Cambrian. 



In 1903 Dr. E. A. Smith of Alabama discovered fossils in the 

 eastern portion of the Ocoee of that State. These were determined 

 by David White to be of Carboniferous age. The working out of the 

 relationship of this fossiliferous area to the rest of the Ocoee recently 

 fell to the author in the study of Clay County, Alabama. A care- 

 ful study of the structure of the area brings out the fact that a con- 

 siderable portion at least of the Ocoee is of Carboniferous age, 

 both Mississippian and Pennsylvanian being represented. 



At the present time therefore it is known that the Ocoee Group 

 consists of at least three systems of rocks. 



258th Meeting— May 9, 1922 



Wm. DeB. MacNider — The Changes Induced in the Kidney hy the 



Continued Use of Alcohol. 



Dogs were employed in the experiments. The animals were given 

 lOcc. of 20 per cent alcohol once a day to the point of establishing 

 a moderate grade of intoxication. Such a state was shown by muscular 

 incoordination and drowsiness. 



Following such a usage of alcohol the animals develop in from 

 seven to eighteen days a well-marked albuminuria. The number of 

 tube casts in the urine are few as compared with the quantitative out- 

 put of albumin. There is but a slight reduction in the elimination 

 of phenolsulphonephthalein. Kidneys from such animals show but 

 slight injury to the tubular epithelium. The glomerular capillaries 

 show an early and very marked accumulation of stainable lipoid in 

 the endothelium. 



