MARTIN SIMPSON AND HIS GEOLOGICAL MEMOIRS 
306 SHEPPARD : 
I^ima , . 
Anomia 
Sponctylus 
Perna . . 
Avicula 
Pinna 
Area 
15 species 
3 
Asterias . . 
Pentacrinus 
Echinus . . 
Corals 
Total 
8 species 
..4 
. . 3 
5 
.. 745 
Simpson also points out that Mr. Blake has described seventeen 
species of Entomostraca ; a wing-case of a beetle, and two neuropterous 
wings ; and there are brief notes on " Vegetables " [2 sp. named], 
" Minerals " and " Jet." There is a good index in which all the species 
are enumerated. 
It does not follow, of course, that all the species described by 
Simpson hold good to-day ; Mr. S. S. Buckman, in his " Yorkshire 
Type Ammonites " has changed many, and specialists in other directions 
would not accept all the names enumerated ; but the fact remains 
that Simpson's list is a remarkable piece ot work, the more welcome to 
the average field geologist because of the descriptions of the species 
given. Simpson stated : ''On whatever subject I write, I have con- 
stantly before me persons of ordinary education, and for their benefit 
I sink, as much as possible, anything which might appear technical or 
learned." 
The next work of Simpson's is his " Guide to the Geology of the 
Yorkshire Coast," and ot this what is described as the " second edition " 
(1856) is really the first, as what he apparently considers his first 
edition was a portion of his first edition of " The Fossils of the Yorkshire 
Lias," already described. The following appears on the title-page of 
the first independent issue of his Guide : — 
" A Guide / to the / Geology / of / The Yorkshire Coast ; / illus- 
trated with sections / By Martin Simpson, / Lecturer on Natural 
Science, and Curator / of Museums. / Second Edition. 
Whitby : / Silvester Eeed, Old Market Place, / 1856." 
It contains 28 pages,* the title and cover (of green paper) are 
* On the last page is the announcement : — " Recently published 
by the same author / ' The Fossils of the Yorkshire Lias ' ; / Described 
from Nature / with a short outline of the Geology of / The Yorkshire 
Coast. / Illustrated with sections / Price 2s. 6d.'' 
