144 Miscellaneous Intelligence. 
proper situation for distinct vision (and always to the same invariable 4 
distance to insure an equally magnified image on each day y this 
arrangement, a considerably magnified image of the sun, pe also of 
wos sysiem of wires in the focus of the object-glass, may be thrown upon 
e * focussing-glass’”’ of a camera-box adjusted to the eye-end of a tel- 
escope. By employing a system of spider-lines, parallel and perpen- 
dicular to the diurnal motion, and so disposed as to divide the field of 
vision into squares, say of 5’ in the side, the central one crossing the 
sun’s centre (or rather, as liable to no uncertainty, one of them being 
a tangent to its lower or upper limb), the place of each spot on the sure 
face is, ipso facto, mapped own in reference to the parallel and de- 
clination circle and its distance from the border, and its size measura- 
ble on a fixed scale. If large spots are to be photographed specially 
with a view to the delineation of their forms and changes, a pretty large 
ect-g il 
jeet-g will be required, and the whole affair will become a matter 
of much gt eater nicety ; but for reading —_ mae of the sun, I 
should im 
2 a 3-inch object-glass would mple. e representa~ 
possible, be taken daily, ar the time carefully noted. 
they should be taken at the same hour each day; 
mates, distant several hours i tude (suppose 3, at 8 distance in 
longitude), each aides « at or nea at poon, would . the re- 
sults were assembled, keep up a continuous re a 
With regard to power Prepaspéanic of paper, c 
uch 
an thane. kept up among obse 
5. Preservation of Insects—We hows received from Mr. Wm. S. Van 
Duzes of Buffalo, N. Y., a specimen of a method which he has devised! 
for the arrangement and preservation of a idee of insects. He pro- 
poses to take glass-stoppered jars with a large mouth, attach to the under 
side of the stopper a rectangular strip of cork or soft board (whitened with 
hold ; then arrange the insects on one side of this upright piece. The 
insects sce arranged would show finely in a collection,—could be be al 
IL Mu Gealog son has received the appointment of Director of the Gevlo- 
908 Survey,—the post left vacant by the: death of Sir Henry Dela 
he,—and the i : 
of the month. a tea oar Bete 
