Miscellaneous Intelligence. 287 
most delicate details of the work. As to the durability of the lead for 
Sof art, any one who has observed the next to no waste 
which has taken place in lead exposed on the roofs of ancient buildings, 
will have in this way most abundant and satisfactory proof that it is in 
every sense of use as durable a material as bronze when subject sim- 
ply to atmospheric action. 
t would give me pleasure to enumerate several practical details in 
or any of your readers think such information worthy of your atten- 
tion. am, &ec. James NasmyTH. «% «4 “« 
11. British Association —The British Association commenced its -°’ 
twentieth Meeting at Edinburgh on Wednesday, July 31. By Wednes: 
day night 900 names had been recorded, and the receipts amounted to 
£814. At the first meeting, Wednesday night, Sir David Brewster, the °° 
President for the session, addressed the Association. eae 
12. Sun and Moon; (L’lostitut, No. 857.)—M. Nrerce be Sr. Victor 
has obtained images of the sun and moon on beds of albumen ren- 
dered sensible by an accelerative process peculiar to it. These photo- 
taphic experiments confirm the opinion before stated by MM. Fizeau 
and Foucault, that the centre of the sun gives out rays of a greater 
examination brought to light 49 animal forms, soft portions of plants, 
a 
| few crystals, a morpholite and some sand. is powder is disse * 
tinguished from that of the trade winds by some prominent forms,» +” a. 
Ehrenberg believes that there is reason for concluding that this meteoric, oe -. 
’ powder is neither a terrestrial powder nor simple volcanic cinders. 3 °° 2°" 
14. American Zoological Journal.—We take pleasure in announci te ae 
the sp i ae 
Setts), under the direction and edito "ecg ¢ 
will hail it with great bo 
Joiced that it is in ha ix 
s 
ied 
of he 
was - 
