368 NOTES AND COMMENT 



arrangements for an International Phytogeographical Excursion, to 

 be held in Switzerland in the summer of 1915. A prospectus has been 

 issued by the committee outlining a most attractive excursion of thirty- 

 seven days through representative parts of the Alps. A circular letter 

 accompanying the prospectus states, however, that the plans for the 

 excursion will have to be indefinitely postponed on account of the 

 European war. 



Announcement has been made of the formation of an International 

 Palaeobotanical Society, of which one of the chief objects will be the 

 establishment and support of a Palaeohotanisches Zentralblatt. This 

 organ will be a monthly, published by Gebriider Borntraeger, and 

 edited by an international committee, the members of which are Scott, 

 Berry, Zeiller, Jongmans, Zalessky, Nathorst, Engler, Krasser and 

 Gothan. The subscription is Mk. 10 per annum. 



The following papers will appear in early forthcoming issues of The 

 Plant World: Notes on the Relations between the Floras of Subant- 

 arctic America and the Dominion of New Zealand, by Carl Skotts- 

 berg; The Relative Transpiration of White Pine Seedlings, by George 

 P. Burns; Atmometry and the Porous Cup Atmometer, by B, E. Livings- 

 ton; The Flora of the Williams Division of the Tusayan National 

 Forest, Arizona, by A. D. Read; A Manometer Method of Determining 

 the Capillary Pull of Soils, by W. A. Cannon; Observations in the 

 Colorado Desert, by S. B. Parish; and Natural Reforestation in the 

 Mountains of Northern Idaho, by H. B. Humphrey and J. E. Weaver. 



