Record. xxiii 



liar wounds found on two-year-old twigs of nearly all woody 

 plants growing in St. Louis and vicinity. 



Professor F. E. Nipher gave an informal talk on the 

 methods of making liquid air, describing the process by which 

 Mr. Tripler makes liquid air in large quantities. 



Dr. Max A. Goldstein and Mr. John Schroers, of St. Louis, 

 were elected to active membership. 



October 16, 1899. 



President Engler in the chair, thirteen persons present. 



A paper, by Dr. T. J. J. See, On the temperature of the 

 sun and on the relative ages of the stars and nebulae, was 

 presented in abstract by Professor F. E. Nipher. 



Dr. H. von Schrenk presented some notes on Ai'ceuthobium 

 pusillum, which was found in Maine during the past summer, 

 growing on the white spruce along the sea-coast. The trees 

 which are attacked form large witches' brooms, the branches 

 of which are much longer than the normal branches. The 

 manner in which the seeds are disseminated was briefly de- 

 scribed, and seeds were exhibited adhering to branches of the 

 white spruce. 



Ten persons were proposed for active membership. 



November 6, 1899. 



President Engler in the chair, eleven persons present. 



The Council reported the resignation of J. H. Terry and 

 E. C. Tittmann. 



The presentation to the Academy library, by Dr. Enno 

 Sander, of a set of the Messages and Papers of the Presi- 

 dents of the United States, in ten volumes, was announced. 



Professor J. H. Kinealy presented informally the results of 

 an investigation into the distributions of light from certain 

 fixed centers, when used for the illumination of a room. 



A paper by Mr. Stuart Weller, entitled Kinderhook faunal 

 studies. IL The fauna of the Chonopectus Sandstone at 

 Burlington, Iowa, was presented in abstract. 



The following persons were elected active members: Gel- 



