286 Scientific Intelligence. 
3. Note on the Heat of the Stars ; by Wrru1am Hveerns, F.RS. 
—In the summer of 1866 it occurred to me t that the heat received 
moon, and on three or four fixed stars. I suce eded j in aed 
trustworthy indications of stellar heat in hes case of the stars Sirius, 
Pollux, and Regulus, though I was not able to make any quanti- 
tative estimate of their calorific pow 
fter describing the mode of ‘aking his observations with an 
astatic abrasiomterer. he observe 
e mean of a number of shennan of Sirius, which did not 
sep’ greatly from each other, gives a deflection of the needle 
The observations of Pollux 
p 
In one observation Arcturus d flected the needle 3° in 15 minutes. 
The observations of the full 1 moon were not accordant. On one 
night a sensible effect was shown by the needle; but at another 
time the indications of heat were isxneanively small, and not sufli- 
ciently uniform to be trustworthy. 
It should be stated that several times anomalous indications 
See 
light was onnitved ' in diferent t stars, 
The Total Eclipse of August 7, 1869.—Few astronomical 
phenomena have probably ever called out a more thoroughly or- 
the recent 
special astronomical sieabhera | in view. ; fs 
An appropriation was made by Congress, at its last session, ae 
carrying out a series of observations unde er the ee of the 
oe and extensive facilities contributed by so P 
cipal railroads, in providing for an amount of work ‘which for ms 
