1890. J On the Heat of the Moon and Stars. 491 



Fig. 5. 



were prevented by light fleecy clouds which, as they flitted across the 

 moon, so disturbed the deflections in the direction of cold (not as heat 

 as when they pass over the sky or over stars) that the curves ob- 

 tained later were a mass of teeth, like a comb or a saw, and ceased to 

 have any value. 



September 22nd. This was at first a perfect night, not a breath of 



Fig. 6. 



VOL. XLVIl. 2 



