156 Miscellaneous Intelligence. 
sun, but of twice the width of the latter, and of dazzling brillianey, 
The circle E F, with a diameter of about 60°, h in 
t 124 0m, AB had contracted to 30° diameter, and become faint. 
All traces of the meteor had entirely vanished at 1h 30m P. M. The 
i d in the mean time become gradually converted into cirro-cu- 
mu/us, and the thin haze had completely vanished. 
Weld, Franklin Co., Maine, May 28th, 1860, 
2. Lolles’ improved Microscope Objectives—It has been generally sup- 
oscope 
I have recently received from Mr. Tolles a one-third inch “objective, cone 
structed on his plan, which has an aperture of 100° and is remarkable 
other tests appropriate for such an objective. This is a remarkably fine 
Tolles’ glasses are unsurpassed by any object-glasses for the microscope 
M. C. WuitTE. 
8. Application of Photography in construction of Micrometers.—Thé, 
‘ 
2 
= 
successful application of photography in the construction of inicrometers a 
has been made by Mr. Clarence Morfit of the U.S. Assa ce, Ne 
est divisions equal to one two-thousandth part of an inch square. The 
method is simple, accurate and economical. Moreover, the micrometer 
has the advantage of giving the exact measurement of the object in frae- 
