24 



The Irish Naturalist. 



March, 



REVIEWS. 



FRESHWATER PROTOZOA. 



The British Freshwater Rhizopoda and Heliozoa. By James Cash and 

 George Herbert Wailes, F.L.S., assisted by John Hopkinson, 

 F.L.S. Vol. iv. Supplement to the Rhizopoda by G. H, Wailes 

 and Bibliography by John Hopkinson. London . (Ray Society). 

 1919. Pp. xii. + 130. Pis. 58-63. 



The three volumes of this monograph already published deal with the 

 amoeboid and conchuhne Rhizopoda of the Britannic fauna, while the 

 fifth (now in preparation) will contain an account of the Heliozoa. In 

 the present volume the authors enumerate and describe those genera and 

 species which have been added to our known fauna during the publication 

 of the earlier volumes. The number of genera included is thus raised 

 from fifty to fifty-eight, and six of the species described are new to science. 

 The figures, whether plain or coloured, are beautifully drawn and 

 reproduced, and the student of these interesting micro-organisms will 

 find in Mr. Hopkinson's bibliography a valuable guide to the extensive 

 literature. Irish writers will notice the inclusion of Archer's classical 

 papers of the last century, Bailey Butler's chapter in the Dublin British 

 Association Guide of 1908, and Wailes and Penard's memoir in the R.I. A. 

 Clare Island Survey, which is the source of many of the records contained 

 in this volume. An introductory note on the manner in which various 

 species of the ConchuUna construct their tests of secreted or collected 

 material is fascinating and all too short. 



G. H. C. 



SCIENTIFIC RECREATIONS. 



Pastimes i'or the Nature Lover. By Stanley C. Johnson, D.Sc. London : 

 Iloldcn and Hardingham, Ltd. Pp. 136. Price, is. net. 



This little book contains directions for a variety of pursuits one or 

 more of which might appeal to the " curious." Here we may learn how 

 to attract birds to the garden and to feed them in winter, how to set up 

 a small freshwater or marine aquarium, how to collect and preserve shells, 

 or how to photograph leaves and insect-wings by contact-printing without 

 camera. The directions arc clear and generally trustworthy, but the 

 illustrative figures are crudely drawn and sometimes gravely misleading, 

 as for example, that of the butterfly (fig. .jO) whose liindwings arc 

 attached along the whole length of the abdomen. 



G. 11. C, 



