121 
MICROSCOPICAL AND NATURAL HISTORY SECTION. 
February 28th, 1870. 
John Watson, Esq., President of the Section, in the Chair. 
The following extract from a letter to Mr. H. A. Hurst 
from Dr. Mueller was read : — 
“ I should be obliged if you would procure for me seeds 
(or roots) of Sagittaria, Hottonia, Butomus , Lysimachia 
vulgaris and thrysiflora, Menyanthes, Villarsia, Lychnis, 
Flos-cuculi, Caltha palustris, all of which I should much 
like to naturalize in a lake of this garden. I will gladly 
send a good collection of Australian seeds in exchange.” 
The Secretary will be glad to receive seeds of any of the 
above-named plants which members may be able to collect 
during the ensuing season. 
“On some Shell Deposits at Llandudno,” by Mr. Joseph 
SlDEBOTHAM. 
The author referred to a paper by Mr. Darbishire, published 
in the Society’s Memoirs in 1867, where these deposits are 
mentioned and considered to be the refuse -heaps of former 
inhabitants. 
The object of the present paper was to enter more into 
detail as to the composition of these refuse heaps and to fix a 
probable date as to their being formed ; the deposit specially 
examined is situated at the foot of the Great Ormes Head, on 
Conway Bay, and has been partially washed away by the 
sea, a section of it is best seen from the beach; photo- 
graphs of it were exhibited. This deposit consists chiefly of 
shells of patella, purpura, and littorina, and bones of animals, 
with pieces of charcoal. Mr. Boyd Dawkins, F.R.S., had 
