Notices of Memoirs—Prof. Jones—Phyllopod Crustacea. 461 
“was not vertical,” but “coming in more or less” (whatever that 
may mean), and hence supposed to be safe from falling in. 
From the ‘Summary of Transactions” of the Company, for the 
year ending 30th April, 1883, we gather the following interesting 
particulars :— 
The quantity of diamond-bearing rock termed ‘‘the blue’’ that has 
been removed (‘‘ hauled ’’) bao Ace . 344,205 loads 
The quantity of ‘‘blue”’ that has been washed... ... Meat te face OLN SOameae 
The ‘ balance”’ (*‘ blue ”’ not used ! ee TREC ORAS stem, Cate ean tO OOO. pias 
ihesquamtiiy, ot diamonds; found... © 7.0 wo) eo, ces eos cee eee 401,488 carats 
¥ ca Bold) cate DP RSG ASAE SOO IO: 
Realized by the sale... sottiees L482, 014 = 1p 19 
Cost (or value) of ‘‘ plant’”’ (Machinery, ete) « 6 a8) CL 16) 0 
General expenses of working. . £253,920 15 11 
The quantity of ‘‘reef” (the hormiiine: oe malic ww. «. 285,4682 loads 
The quantity of water used... .. 650. odd) Ba 13,283, 838° gallons 
Amount received from the Kimberley imine Board £ 55,351 12 3 
hewiividendtdeclared 5... 3. soo goo es OOLOHiY ©. 0 
Rates and Licenses paid ... ... anD | co0 £147, 709 4 8 
—From the “ Diamond- fields iAavenieee ” Kimberley, June, 1, 1883. 
Dramonp Fiexips, Soutn AFrica. 
The De-Beer’s Mining Company, in their Report of the Annual 
Meeting held on the 7th May, 1888, state that during the year 
ending 3lst March, 1882, 96,459 loads (16 cubic feet) of “ground” 
washed yielded 76,859 carats of diamond, realizing £104,552 8s. 8d.; 
whilst during the year ending March 31, 1883, 166,186 loads washed 
yielded 149,396 carats, realizing £158,675 4s. 34d. (£161,675 4s. 3d. 
according to one of the Tables), giving an average yield of 19s. 11d. 
a load, at a cost of 11s. 94d. a load, leaving a profit of 7s. 83d. a 
load. Average per carat 21s. 3d. 
“¢ Blue ground”’ palneady on the ‘‘floors’’ to March, 1882... ... ... 3,000 loads 
hauled and deposited on the floors to March 31, 1883 179, (SD. 35 
39 washed from March 1882 to mia 1883, estimated at 166,186 ,, 
i lent omsthenctloors: 72 m-eatersee mle. scene teen tO, OA Oars 
i ‘Floating reef” hauled ... ... Aids: Meste 130, BO) ee 
Besides this balance of “blue ground” oh Company has 25,000 
loads of “lumps” spread out on its “floors,” representing a cost of 
£1250, and producing an average of 2ths of a carat a load, showing 
the “ground,” after allowing a per-centage for “black reef” and 
“high ground,” has averaged for the year at least a carat a load. 
99 
I].—Panzozo1ic Puynttopopa; As REPorRTED ON TO THE BRITISH 
ASSOCIATION, SouTHPorT, 1883, Srction C. GEoLoey. 
oe T. RUPERT JONES, having especially devoted himself, 
in the past year, to a study of the fossil Phyllopodous Crustacea, 
finds that there are upwards of thirty recognized genera, of which 
seventeen occur in Britain. 
After carefully collating original sketches and the tracings of all 
published figures, the following synopsis of the genera has been 
drawn up by him as a basis for a more complete study of this 
extensive group. 
