SCIENTIFIC SUMMARY. 
433 
Dr. Duncan, nor foraminiferal, as was suggested by Dr. Allman, but in all 
forms were referable to species of Fenestella and Polypora. Although this 
opinion was given with some confidence, the author was not prepared to say, 
at present, that the whole of Dr. Duncan’s views were illusive. There could 
be no doubt but that the forms P. scotica were really infertile processes ; 
but P. radiata had presented so many peculiar details to the author, that 
until he had satisfied himself as to the nature and purpose of this structure 
in the polyzoary of the Polyzoa, he was not in a position to prove that Dr. 
Duncan had given an erroneous judgment, although P. radiata might turn 
out to be, after all, a portion of Fenestella and not a parasite. 
METEOROLOGY. 
Rain and Temperature. — Mr. H. 0. Fox, of Stoke Newington, read a 
paper before the British Association, at Sheffield, on the Synchronism of 
mean temperature and rainfall in the climate of London. The paper was 
accompanied by tables exhibiting each month and season for the past sixty- 
seven years, arranged in the order of its rainfall, and also in the order of 
its temperature, for the Royal Observatory. 
The principal conclusions were stated to be : — 
(1.) In each of the four months, from November to February, extreme 
cold tends to be synchronous with dryness, warmth with large rainfall. 
(2.) In the summer months, from June to August, cold tends to be ac- 
companied by much rain, warmth by dryness. 
(3.) To put this in popular language, rain brings warmth in winter and 
cold in summer ; that is (if rain be the cause, which is by no means proven), 
it mitigates the special character of each extreme season, winter and 
summer. 
(4.) Very wet years tend to be either cold or warm, whilst years of 
drought tend to assume an average temperature. 
MINERALOGY. 
Mallardite and Luckite. — The name Mallardite has been given by A. 
Carnot to a new native manganese sulphate, and Luckite to a new native 
iron sulphate, which occur in the silver mine of Lucky Boy, at Utah 
( Compt . rend. 1879, lxxxviii. 1268). The former consists of small crystalline 
parallel fibrous masses, which are originally colourless and translucent, but 
on exposure to the air soon become white, and opaque, and weathered. It 
is easily soluble in water, and has the composition, MnS0 4 + 7 Q^O. The 
sulphates already known are szmikite with one equivalent of water, fauserite 
with magnesia sulphate, and apjolinite with aluminium sulphate. The 
above may therefore be regarded as a new species. It is named Mallardite 
to honour M. Mallard of the JEcole des Mines. The iron sulphate form6 bright 
NEW SERIES, VOL. III. — NO. XII. F F 
