FART 1. 11, INOW. IVEADY, FART Ill. IN THE PRESS 
‘Subseriptions are invited for 
| paar es : 
MONOGRAPH 
- OF THE ae 
LAND AND FRESHWATER MOLLUSCA ~ 
-OF THE. oe 
BRITISH ISLES, 
as BY 
JW. TAYLOR, ELS: 
Membre Honoraire de la Société Malacologique de France, _ 
President of the Conchological Society: of Great Britain and Ireland, 
Editor of ‘‘ The Journal of Conchology,”’ 
etc., etc., ‘ 
_ WITH THE ASSISTANCE OF 
W. DENISON ROEBUCK, F.L.S., the late CHAS. ASHFORD, - ; 
AND OTHER WELL-KNOWN CONCHOLOGISTS. 
VoL. I is Introductory, the first part dealing with the DEFINITION OF CON- 
CHOLOGY, History, CLASSIFICATION, NOMENCLATURE, SYNONYMY, SHELL, 
a 
SPECIES, VARIETIES, &c., and is illustrated with numerous figures in the text and a 
plate in colours. 
The second part concludes the consideration of the variations and monstrosities 
to which the shell is subject, treating upon Sinistrorsity, Scalariformity. Hyper- 
strophy, Heterostrophy, etc., etc., and the Auxiliary Appendages of the shell, and . 
is richly illustrated by figures in the text and a plate in colours. 
The third part, which will follow as quickly as practicable, treats upon the — 
Morphology and Anatomy of the animal inhabitant and its various systems of organs. 
Subscription, 5/- per part; post free, 5/3. 
Subscribers’ Names to be sent, with Subscription, addressed to the 
Author, Spring Bank, Horsforth, Leeds, or to Taylor Bros., 
Sovereign Street, Leeds. 
A full list of Subscribers will be printed at the completion of the work. 
ENQUIRY COLUMN. 
I should be-glad of an answer to the following question, viz. : Is bog water prejudical and 
inimical to the ordinary- British mollusca—Limucea, Paludina, Bythinia, &c., &c.? Perhaps 
some readers who have collected these shells can inform me. I am interested in some Irish 
fishing. The common brown Trout (7. /ario), though abundant, run small—a fish of a pound 
weight is a vara avis! (sue now! I write of Irish fish) and it has occurred, to me that want of 
Sood is the real reason. -We know that the great abundance of food found by the common trout 
introduced into New Zealand waters, was the main causé of their attaining a colossal size, some 
have been taken out over 4o Ibs. weight !! Could I not increase the size of the Lough trout 
where I fish by the introduction of the mollusca on which they feed, for, on examining the loughs, 
’ IT could not tind a single specimen of any of our freshwater shells. I-then remembered that I 
never saw any mollusca in the Lochs of South Uist or Harris, which are the products of the 
drainage of bogs. Of course, the question at once arose, is it of any use to go to the expense-and 
trouble of importing living molluscs if they will not survive and increase in these waters? Will 
some of my brother conchologists, who have sought for these shells in Great Britain and Ireland, 
help me toa solution of the problem? J shall be infinitely obliged to them.—E. L. LAYARD, ~ 
Otterbourne, Budleigh Salterton. ¥ 
Can any member give me the the derivation of “‘ osphradium” and ‘‘rhinophore” ?—L. E. A. 
