REVIEWS. 
157 
explanations of anatomical details will be of great use to the student 
in enabling him to gain a connected view of the various facts which 
he learns from his dissections. 
There are some forty-eight illustrations; more have not been 
introduced, as it is strongly and rightly insisted that the student 
should make them for himself from his own preparations. Many of 
those given are new and have been specially drawn for the book. 
They are for the most part very good, but exception must be taken to 
those of Vorticella, and of the section through the body-wall of Hydra 
viridis, the former being greatly wanting in detail, and the latter 
being crude in execution. Those, however, of sections through the 
Crayfish, Mussel, Snail, and Amphioxus are exceedingly good and useful. 
Last, but not least, comes a very full and accurate index, while the 
printing and paper are all that can be desired. 
There seems to us to be only one point in which this work is 
wanting, and that is in the absence of any bibliography of standard 
monographs on the various animals considered. The author may 
perhaps fear that students would copy the illustrations given in such 
works, instead of drawing their own preparations; that difficulty, 
however, could be easily obviated by the teacher, while the advantage 
of having good illustrations to which to refer, especially of the histo¬ 
logy of the animals—a subject somewhat slightly treated by Dr. 
Marshall—is very great. 
In conclusion, we heartily recommend this book to all teachers and 
students of Zoology, and hope that it will have the wide sale it 
undoubtedly deserves. 
British Fungi (Hymenomycetes). Rev. John Stevenson. Vol. II., 
Cortinarius — Dacrymyces. Wm. Blackwood and Sons, Edinburgh. 
Pages 1—336. 
This is the completion of the work which has been so long looked 
forward to by British mycologists. Armed with this volume and its 
predecessor, the student of our larger Fungi is in a position to face the 
coming Autumn campaign with an assurance of success such as few in 
this country can have ever felt before. Especially will this volume be 
useful in regard to the difficult genus Cortinarius, for as all know, it is 
in this group that we find so many species which ordinary fungus 
collectors are totally unable to refer to their proper names. Still, with 
the full and faithful descriptions here afforded, this hitherto almost 
hopeless task can be satisfactorily accomplished. 
But it must be confessed that the moment we leave the Agaricini 
and travel beyond the limits of Fries’s “ Monographia,” from which 
work our author has translated these descriptions, we have to fall back 
upon the bald, deceptive, and irritating diagnoses of older days. A 
more serious complaint, however, can be founded on the fact that the 
present volume does not contain, as an appendix, the descriptions of 
those species which have been discovered as British since the author 
