Pennsylvania for Sessions igoi-igoj. Ixvii 



noteworthy were a collection of several hundred from Dr. 

 Rosenstock, including many examples of wild hybrids, varie- 

 ties and rare European species, also a collection of Cali- 

 fornian species sent by Mr. De Cou, now resident there. 



January 2, ipoj- Dr. Miller, President, in the chair. 

 Dr. C. H. Shaw spoke on "A Proposed Lesson in Botany, 

 Twenty Interesting Plants and How to Know Them." He 

 said that in botanical study we too often deal in generalities 

 without cultivating an intimate acquaintance with the dif- 

 ferent growing stages of the living plant. By aid of lantern 

 slides, he then made the audience familiar with the homes 

 and haunts of Dicentra, Hcpatica, Sangiiinaria, Cypripe- 

 dimn, Epigcca, Dccodon, etc., and referred to suggestive 

 growth relations in each. 



Mr. O. P. Phillips then gave "Plant Life in Relation to 

 the Painted Desert and Grand Canyon," illustrating with 

 a set of beautiful lantern slides, many of them colored. In 

 Western America we have large areas of desert land which 

 exhibit all stages of aridity from the heated sandy regions 

 over 300 feet below sea level on the Colorado and Yuma 

 deserts through the conditions shown by the great Sahara of 

 Africa, to the arid plateau region of Arizona and New 

 Mexico, known as the Painted Desert, from 6,000 to 8,000 

 feet above sea level. Over these areas the green woods 

 and sage bushes form the prevalent type of vegetation, 

 bunch grass is occasional. Poplars and willows are the 

 common trees along the railways, while junipers and nut 

 pines are scattered over the higher areas. 



Miss Marion Mackenzie then intimated that phytopheno- 

 logical charts would be distributed to all who desired to 

 make records during the year. 



Dr. Miller showed and commented on some catalogues of 

 spices and essential oils sent out periodically by Schimmel 

 & Co. 



Dr. Macfarlane exhibited and shortly described specimens 

 of Rubus australis, three species of seedling Acacia, and 

 several specimens and hybrids of Cypripedium. 



