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POPULAE SCIENCE REVIEW. 
Mineralogy of a Meteorite. — Some time ago, Professor Kengott, in arrang- 
ing certain specimens in the mineralogical museum of Zurich, discovered a 
specimen marked “ native iron from Styria.” Suspecting it to he meteoric, 
he sent it to the director of the Imperial Museum at Vienna, who had it cut 
and polished. Subsequent treatment with acids left no doubt of its cosmical 
origin. It also contained crystals, which appeared to be Olivine and Pyrosene, 
and its general character seems to identify it with the meteorite which feU, 
many years since, at Steinbach, in Saxony. It may be mentioned, that no 
meteorite has yet been knoAvn to have fallen in Styria. “ It would be in- 
terestmg if the directors of museums would submit any specimens of native 
iron they may have in their possession to similar tests.” — Vide Chemical NewSj 
July 9. 
Composition of Parisite. — MM. Damour and Deville have given an 
analysis of this mineral, which is composed of carbonates and fluorides of 
cerium, diclymium, lanthanium, and lime. Its density is 4'358, and it has a 
hardness intermediate between that of apatite and fiioorine. It is infusible in 
the lamp-flame, but certain specimens when heated in a test-tube crumble 
down and are resolved into a multitude of exceedingly fine scales. The form 
under which it usually presents itself is that of the regular hexagonal prism, 
and its colour is yeUowish-brown. It is unacted on by cold acetic acid ; but 
cold nitric acid dissolves it slowly, leaving a white residue composed of scales 
of fluoride of calcium, and cerium. — Vide Comptes Bendus, August 8. 
PHOTOGRAPHY. 
The Last Photograijhic Exhibition. — The fears we expressed in our last 
with reference to the exhibition of the Photographic Society have, unfor- 
tunately, been more than realized ; for, in every respect, it has proved a 
failure. The collection, for want of space, was an unusually small one, and, 
although good, contained so few works of an interesting or novel character, 
that our surprise at continually finding the little room empty, was, after a 
first visit, considerably diminished. It was, as we . expected, too literally the 
exhibition of the society, aU, or very nearly all, the works contributed being 
the productions of members. The artistic photographs of Mr. H. P. Robinson, 
the clever enlargements of Mr. Alfred Harman, Mr. Swan’s carbon-prints, 
and some photo-zincographic and photo-lithographic specimens by Colonel 
Sir Henry James, Mr. Toovey, and Mr. Osborne, were the most deserving of 
special notice, if we except the very charming and beautiful little pictures 
sent by Lady Hawarden, who deservedly carried off the principal of the 
several medals awarded. Our monthly contemporary, the Art Student, says, 
“ One of the most important and attractive features of former exhibitions — 
coloured photographs — was this year sacrificed by a ludicrously prudish 
affectation of being intensely mechanical and scientific. Extremes meet ; 
from unhesitatingly introducing life-size paintings, simply because they were 
drawn by the aid of a camera, we have the most harmless and solitary brush- 
mark to remove a trivial defect condemned as excluding an otherwise splendid 
production from the reward honourably and fairly due to its producer.” This 
allusion is to some beautiful landscapes by Mr. Annan, one of which would 
have carried away a medal but for the “ defect ” mentioned. 
