64 The Ottawa Naturalist. [June 



catalogue includes a little over 1,300 species. "The largest 

 family is the Theridiidas with 298 species; the Attidae is next 

 with 213; two other families, the Lycosidae and Epeiridae, have 

 over 100 species in each. Sixteen families have less than 10 

 species apiece." This work will be a most useful one. Manv of 

 the species occur in Canada but comparatively few definite 

 records are available. The publication of this catalogue will 

 undoubtedly lead to more systematic work, and it is to be hoped 

 that entomologists, or others, in Canada, who are interested in 

 spiders, will do their share in working up local species. In the 

 East a fair amount of work has been done in collecting these 

 creatures, but in the West practically all records of captures 

 would be of value. 



A. G. 



NOTES. 



Another Case of Natural Grafting. Mr. J. R. Ander- 

 son's note in the April number of The Ottawa Naturalist, 

 al)Out an interesting case of natural grafting, prompts me to call 

 attention to a somewhat different case which may be seen by 

 any Ottawa member, when walking down Bank Street to the 

 Glebe. On the west side of the street, between Roseberry and 

 Strathcona Avenues near Patterson's Creek, there is a medium- 

 sized maple, from the base of which a sucker or twin sapling 

 was at one time growing. The "twin" is still there, but no 

 longer as an independent stem. About a foot from the ground 

 it becomes lost in the larger tree, the bark of which has closed 

 completelv over it. Several inches higher up, a branch three or 

 four inches in diameter emerges obliquely from the trunk, and 

 is evidentlv the re-appearance of the lost sapling; though now 

 looking more like a normal branch of the tree. It is several times 

 the diameter of the part, below. The latter though making little, 

 if any growth, is still alive; but any contribution which it may 

 make to the life of the branch must be very .small in comparison 

 with that derived through the main trunk. Should one of our 

 future naturalists have the good fortune to be present when this 

 tree is cut down, he may be able to extend this note with some 

 interesting information gathered from a study in cross section. 



H. Groh. 



The Publications Cominittee beg to announce that the 

 miscellaneous publications, of which mention has been made, 

 (p. 9, April number, 1910), will be available for free distribution 

 to members of the club on June 21st next at 4.30 p.m., in the 

 ^basement of the Normal School. L. H. Newman, Ch. of Com. 



^RARYl 



