NOTICES OF NEW BOOKS. 393 



A Bibliography of the Tunicata, 1469-1910. By John Hopkinson, 

 F.L.S., F.G.S., F.Z.S. Ray Society. Dulau & Co., Ltd. 

 A bibliography on a special branch of zoology is one of the 

 most cherished possessions in a naturalist's library. It makes 

 so much possible ; it enables and incites us to study first hand 

 many old and some more modern treatises which we scarcely 

 retained in memory, so generously are we now provided with 

 up-to-date publications. But scattered in these older writings 

 are often to be found the germs of many modern theories and 

 conclusions, as well as observations and facts which have not 

 always filtered down in our modern literature, though sometimes 

 well known, but scarcely attributed to their original promulgators. 

 This Bibliography has evidently been a work of love to Mr. 

 Hopkinson, for such a compilation .can never be adequately 

 made in a perfunctory manner ; it is a labour only achieved by 

 personal inspiration and impulse. Among students of the 

 Tunicata this book will be what Hagen's ' Bibliotheca Entomo- 

 logica ' is to entomologists. 



Pond Life. By Eev. Charles A. Hall, F.R.M.S. Adam & 



Charles Black. 



A knowledge of natural history often bears an inverse ratio 



to the extent of the area over which it is studied. Long journeys 



frequently only provide desultory study ; one goes to find certain 



things and others are unnoticed. How few of us really know 



the flora and fauna of our own gardens ? and it takes a good 



naturalist to do so. This little book confines its description to 



the plant and animal life to be found in and on the banks of a 



pond, accepting that word in its larger significance. Years of 



work and observation may be expended on such a quest, and 



many problems will have to be answered before we can pretend 



to know "pond-life"; nor could such a small book serve to be 



anything but an introduction to the subject. Volumes might be 



written on such an apparently small theme, for to know the 



great is to know the little. Mr. Hall has written an excellent 



and interesting book for the young student or general reader, 



and it may surprise many to learn the mass of living creatures, 



both plant and animal, that may be studied almost just outside 



their own doors. 

 Zool. ith ser. vol. XVII., October, 1013. 2 h 



