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The Egc;-case of :i Bpidei" from Cannes. 

 By Dr. G. H. Kodmax. 



[Read mill Jinie, lOlU.] 



Some months ago Mr. J. C. Warburg gave me a few examples of 

 egg-sacs of spiders collected by bim at Cannes (Alpes maritinies) 

 20 years ago. Amongst tbem were several that I tried to name, 

 and it is one of these that supplies me with the material for n)y 

 communicaLioii this afternoon. I bring it before the notice of 

 this Society with the idea of placing on record what I have been 

 able to find out about it. 



2. The three spindle-shaped egg-sacs (I produce the actual speci- 

 men), measuring about 1 inch in letigth, are of a straw-colour, 

 severallv attached by a tine strand, about H inches long, of silken 

 material to a small branch of some tree {Mimosa ?). (Fig. A on 

 page 80.) One of the egg-sacs shows two minute circular punc- 

 tures, possibly the result of attention by an Ichneumon fly. (See 

 figure B on page 80.) 



3. I sacrittced one sac and cut out a portion of the sac-wall. 

 Microscopically, I found it to consist of the typical silk employed 



