146 Dr. Maton's and Mr. Rackett's 
SimiUtudine omatis" and in an appendix to Ins * de AquatiUbus 
Obse?'vationes" he gave a particular description of Lepas anatifera, 
refuting the ridiculous notions entertained at that period respect- 
ing this creature. 
Sir Robert was contributor of several papers to the Philoso- 
phical Transactions. In volume 19th there is an account of some 
Scotch shells, addressed to Dr. Lister ; and in the 25th volume a 
description of what the author calls Pediculus ceti (Lepas diadema, 
Linn.) forms part of a letter to Sir Hans Sloane. 
The refutation of the absurd story of the Barnacle Goose was 
undertaken by many writers about this time, and among others 
by 
ERICUS A MOINICHEN, 
whose name is prefixed to a dissertation entitled " Concha anati~ 
fera vindicate" 
In the number of writers who have treated of the physiology of 
the Testacea, the celebrated 
LEEUWENHOEK 
deserves to hold a distinguished place. His first production on this 
subject was addressed to the Royal Society, and relates chiefly 
to the generation of these animals : the ova and the intestinal 
structure of certain Mytili are also particularly described. His 
95th epistle treats of the ovaria of Concha in general, and is illus- 
trated by some good figures. Another describes the ova of diffe- 
rent shells. Lastly, in an epistle dated 1717? he gives an account 
of the tendinous substances belonging to some bivalves; but it is 
very concise, and introduced only in a cursory manner, when he 
is treating of the structure of tendons in general. 
LEIGH 
