66 



.Vo/t's (Did Coinnicii/s. 



price.' Not the review copies, we hope ! Then there are 

 advertisements of Mr. Westell's books, .and of Mr. Westell's 

 lectures, and advertisements of Mr. Davis' publications, Mr. 

 Davis' entomological apparatus &c. .\nd Mr. Davis writes 

 some articles for the magazine, arid so does Mr. Westell. And 

 you pay your eightpence for the 32 pag-e quarterly, and must be 

 satisfied. In case the work reaches a second number, we would 

 sugg-est as a far more appropriate title 'The Westell-Davis 

 Advertiser.' 



BRITISH RHIZOPODA AND HELIOZOA. 

 The Ray Society continues to publish its valuable mono- 

 graphs. The latest issued is under the above title, and has 

 been prepared by Mr. James Cash, of Manchester, with the 

 assistance of the energetic Secretary of the Ray Society, 



Centropyxis aculeata var. splnosa. 



(a) A well developed form. (6) An example showing variation, (f) Lateral view 

 of this form, in outline. From Dunham Marsh, Cheshire, x 260. 



Mr. John Hopkinson, who is a native of Leeds. In the new 

 volume is a classified description of these microscopic animals, 

 which it is hoped will result in other workers entering upon 

 a field of research, which is fascinating in a high degree even 

 to the general microscopist. The iieki is a wide one, and 

 besides the structural beauty of tiit- Rliizopoda and the in- 

 teresting phases of their life histories, the possibilities open 

 to anyone of discovering new and previously unsuspected 

 forms in our ponds and marshes, are practically unlimited. 

 The volume is profusely illustrated b\ a number of beautiful 



Naturalist. 



