1870.] BOTANY AND ZOOLOGY. 103 



between Europe and Asia. The principal obstacle in the way 

 of researches connected with botanical geography, is the diversity 

 of the views adopted by various botanists ; one species of Hooker, 

 Wallich and others being equivalent to at least twenty-five species 

 of Maximowicz, Ruprecht and most of the German botanists. — 

 Nature, No. 9. 



Notes on Canadian Birds. — The occurrence of the following 

 rare birds in Lower Canada deserves placing on record. 



Falco Candicans, Gmelin. The American Jer Falcon. — The 

 Rev. D. Anderson, M.A., of Point Levis, an acute ornithologist, 

 informs the writer that he has in his collection an adult specimen 

 of this rare species, which was shot on the north shore of the 

 St. Lawrence, near the Bay of Seven Islands. 



Mr. Hancock has shewn that there are two species of Gyr- 

 falcon, both of which are now included in the list of American 

 birds. It is just possible that the specimens described by the 

 late Dr. Hall as Falco Dawsonls (this Journal, Vol. 7, page 62), 

 are the young of the American Jer falcon. 



Nijctale alhifrons, Shaw. The White-fronted or Kirtland's 

 Owl. — A specimen of this scarce species was procured by the 

 Rev. D. Anderson, which was shot at a place called Breakey's 

 Mills, about six miles from the mouth of the Chaudiere river, 

 near Quebec. 



Cardinalis Virgmianus, Bonaparte. The Summer Red Bird. 

 — In the early part of June, 1862, Mr. W. Hunter saw two 

 individuals of this species on Montreal mountain, one of which is 

 now in his possession. It seems to be of rare occurrence, at least 

 in Lower Canada. j. F. w. 



Lower Canadian Land and Fresh Water Mollusca. 

 — Since the publication of my paper on the above subject, a few 

 additional species have been found in Lower Canada, as follows : 



Bithinia tentaculata, Linn. This common European species 

 has been found living in the Lachine canal, by Mr. G. T. 

 Kennedy. According to Mr. G. W . Binney, this shell has been 

 taken in Greenland. 



Helix Morsei (?), Tryon. Montreal mountain. Mr. R. J. 

 Fowler. 



Helix (^Pseudohyalind) exigiia, Stimpson. West Farnham, 

 P. Q. Mr. R. J. Fowler. 



