€ 
a od F 
Miscellaneous Intelligence. 143 
ourdaloue’s results, so different from the others, were obtained with 
cueatiean instruments and seem to be every way worthy of confidence. 
His investigations extended from Cairo to the mouth of the Nile; from 
Cairo to lake Temsah, near the centre of the isthmus, by aie valley of 
Juadeé Sees. otek thence in two lines, one to Tineh and the other 
‘to Suez, the Kemer sixty and the other seventy-five kilometers in length. 
Bourdaloue made two verifications of his measurements, which agreed | 
very nearly with his principal measurements 
- Fall of Dust at Olsterholz, near Detmold ; (Monatsber. —_ 
Acad., ‘April, 1850.)—This fall of dust accompanied snow, with the — 
circumstances, while ten aaron were for the first time observed in dust 
transported by the winds. None of the species were new 
6. <sFege of Metals, eishenies Rendus, Juillet 29, 1850; Phila 
Mag., Oct., 50.)--As the results of numerous ee M. Bau 
drimont has pan ah at the following conclusions : 
_1. That the tenacity of metals varies with their t temperatu 
2. That it geuerally decrenena: though not without cna as the 
temperature rises. 
3. That with silver the tenacity diminishes more rapidly than the 
temperature 
4. That with copper, nity platina and palladium, it decreases less 
ayy than the tempera 
: bat iron presents a gor peculiar and remarkable case: at 212° _ 
_* its tenacity is less than at 32° ; ‘but at 392° its tenacity is greaige? : 
Rex “ 
1. +The views on the relations of vegetable development and the 
wierineee of generation in Radiata, brought forward in the last vol- 
ume of this Journal, p. 34, have been since found by the writer to 
have been ee presented, but at an earlier date, by Dr. W. B. Car 
penter 
8. ee The following letter, heré cited from the Proceed- 
ings of the Acad demy of Natu rat Sciences at Philadelphia, announces 
the death of Dr. Wittiam Ganser, a naturalist of extensive attain- 
ments in rape: especially in Botany and Ornithology, and highly es- 
ge by all who knew him for his-nobleness of heart and personal 
he sonal is dated Mo untain House, Alta California, March 
5, 1860, ¢ nd is addresséd to the editors of the N. American and U. 
Gaza of of Ae mae ‘Dr. Gambel died on the 13th of Decem- 
ro 
fessrs, Bait ors,—I trust yeu will pardon the liberty I take in offering 
- to the “citizens of .Philade elphia, through your valuable paper, a tribute to 
minent and w orthy Philadelphian, who has fallen in 
_ ne memory “an 
: “this wild and far-off country. I ibe to the death of Dr. William Gam- 
= bel, for mer Secretary of-the Academy of Natural Sciences of your city, 
for 
who left California in the sp pring of 1849, taking the overland route, 
to collect gape illustrating the natural history of the Far West, and 
10 ex some extent, the prominent geological features of oe 
: country between the Rocky Mountains and the Great Sierra Nev 
