NOTES ON THE NATURAL HISTORY AND PHYSIOGRAPHY OF N. B. 135 



The cause producing these effects is perfectly obvious and agreed 

 upon by all residents, i. e., the great prevalence, particularly in summer, 

 of southwest winds. The Bay of Fundy acts as a sort of funnel 



a b 



converging at the Isthmus. It would be of great interest to compare 

 the aggregate prevalence of southwesterly winds and their velocity for 

 a summer on the Isthmus with the corresponding facts for other parts 

 of the province, but the data are not available, for there is no station 

 for wind measurement in this district. 



I have not studied the subject minutely but the effects are plainly 

 of two and perhaps of three kinds. First, there is the mechanical 

 bending of the growing shoots giving them all a set in the northeast 

 direction. Second, there is diminished branch growth on the windward 

 side ; this is no doubt due to the greater transpiration upon that side, 

 for it is known that increased transpiration is accompanied by lessened 

 growth of the transpiring parts. With this is correlated, too, an 

 observable greater abundance of dead branches on the windward side. 

 Third, it is possible, though not probable, that branch-development 

 responds, to some extent, irritably to wind direction as a stimulus, in 

 which event we would have a phase of Rheotropism. 



One naturally looks in such a case as this for wind effects on other 

 objects, but the only ones I have seen are occasional inclined telegraph 

 poles, which on the Eddy road almost all lean strongly to the northeast, 

 and the blowdowns in the burnt woods along the Ship Railway which 

 a,re almost invariably in the same direction. More minute observa- 

 tion may show effects on the small lakes of the marshes and even also 

 in some of the details of tidal movements. 



