The South Australian Naturalist . 
55 
All costs at establishment ( 1900) £5 
Compound interest for twenty-five years at, say^ 
five per cent. 12 
Pruning (about) 2 
Fire protection and general charges (about) .... 10 
£29 
I'here is therefore in hand and in sight a very substantial 
dear profit of £150 in twenty-five years. f Since the date of this 
planting the costs both for land and establishment have increased, 
but it is also expected that an advance in the selling price will be 
realized before maturity of pine planted now. As to what this 
increase may amount to nobody can tell.’^ 
A plea for the continuance of forest training at the University 
of Adelaide, where it has been carried on for 13 years follows. 
The whole lecture should be studied by every member. 
t Based on figures supplied by Mr. H. H Corbin, late superintendent. These 
figures are purposely taken beknv the actual yield, for the price obtained for 
some _of the thinnings is probably aboy^ that likely to be realized if large 
quantities are placed on the market. 
SHELL COLLECTORS’ CLUB. 
_The Shell Club concluded its first session on December 7th, 
1925. dwelve meetings were held at whicli both interest and 
attendance weie well maintained throughout. In addition to 
other bivalves the following specimens were studied: 
— M actridae. — 
f (DeUiayes). The largest S.A. Mactra. A fine 
tull-bodied shell glistening white, with areas of brown periostra- 
cum. fairly common, low tide, Semaphore. 
y. aityra/w (Lamarck). Plentiful on Gulf Beaches. Valves 
tinged with purple. 
shell (Lamarck) Common at Largs Bay. Small white 
M. rufescens (Lamarck). Reddish-shaded valves. Collected 
at AJiddleton. 
— Donax. — 
deltoides (Lamarck). Wedge-shaped. Immense 
nmubeis live in shoals on the edge of surf line, Goolwa beach 
y hmzim (E. A. Smith). Small shell. Corny Point. Y.P. 
oleteUina biradiata (Wood). Common on Largs Bay beach. 
mW shades of brown, intersected by two 
Prominent white rays. 
Harbor^^”^ (Lamarck). Large numbers at Outer 
M. corrugata (Lamarck). In tidal flats, Port River. 
