149 



Among the papers included in the Annual Report of the Direc- 

 tor of Botanical Research in the Carnegie Institution (Dr. D. T. 

 MacDougal) for 1907 are "The Advance and Recession of Vege- 

 tation in the depressed Basins of the Colorado Delta," "Accli- 

 matization," " Distribution and Movements of Desert Plants," 

 " The Topography of Chlorophyll Apparatus," " Physiology of 

 Stomata," " Evaporation and Plant Distribution," and " The Re- 

 lation of Evaporation to Plant Activity." 



The New York Tribiuie prints a timely remonstrance on its 

 editorial page : " Arbor Day, more suitable in this region for the 

 cultivation of aquatic plants by amphibians than anything else, is 

 past and gone. It would be interesting to know whether it saw 

 more trees planted or destroyed. For while school children and 

 others were busy with spade and shovel the trolley folk and elec- 

 tric linemen were also active, and the work of wires already strung 

 in chafing and burning and mutilating trees by the roadside went 

 steadily on." It may seem futile to add one more thing to the 

 rapidly expanding school curriculum, but an Arbor Day that 

 does not include the phase of tree preservation suggested by the 

 Tribune falls far short of the needs of to-day. 



G. P. Putnam's Sons have recently published " The Alpine 

 Flora of the Canadian Rockies " by Stewardson Brown and Mrs. 

 Chas. Schaeffer, Dr. Brown is responsible for the text and Mrs. 

 Schaeffer for the unusually fine colored illustrations which have 

 been prepared from her photographs and water color paintings. 

 The book is designed to meet the needs of tourists in the Cana- 

 dian Rockies and is therefore popular rather than purely scientific 

 in its character. Although our imperfect knowledge of the flora 

 of the Canadian Rockies makes impossible at this date a complete 

 flora of that region, a catalogue of distinct value to the botanist 

 was published last fall by the University of Pennsylvania under 

 the title " Contributions to a Catalogue of the Flora of the Cana- 

 dian Rocky Mountains and the Selkirk Range " by Edith M. 

 Farr. Caroline Romer. 



