Scientific Intelligence, 6fc. 475 



tinued exhibiting at 5 seconds before the total occultation, a thread 

 of light, three quarters of the diameter of the planet in length, and 

 much more obtuse at the apex, than the ordinary figure of Ju- 

 piter. 



The occultation of the fourth satellite, which was carefully 

 watched, could not be observed, in consequence of its extreme faint- 

 ness. When within 1' or 2' of the moon's border, it disappeared se- 

 veral times altogether ; and after 3" or 4" again became distinctly 

 visible. The other satellites, during these intervals, did not un- 

 dergo the slightest change in brilliancy ; but on arriving within 2' 

 or 3' of the moon's border, the same phenomena occurred. 



From these observations, it appears highly probable, that the 

 moon is surrounded by an atmosphere; and that its extent is not 

 less than that of our earth. The nature of the observation, how- 

 ever, (which is only prolonged during a few seconds) leaving no time 

 for consideration, or measurement, necessarily leaves us in a state of 

 doubt. It is highly important, and deserves attention. — (Madras 

 Journal of Lit. and Science, ii. 165.) 



IX. — Solar Ecclipse on the 15th May. 



As it seemed a point of some interest to determine the gradual in- 

 crease of solar radiation during the diminution of the obscuration. I 

 kept a register of the Thermometer, which was exposed in a favour- 

 able situation to the action of the sun. The following table contains 

 the result commencing at 3 h 41 or 22-'5 after the middle of the 

 eclipse. The Barometer was also exposed to the sun, an'd is corrected 

 for expansion. 



X. — Footmarks of unknown Animals and JJirds in New Red 

 Sandstone. 



Ouk geological readers are familiar with the description, by Dr. 

 Duncan, of the traces of animal impressions in the new red sand- 



