316 Observations on the Shooting Stars of August, 1844. 



The following is a list of the species which Hall considers 

 common to the Wenlock and Niagara formations. 



Strophomena transversalis, S. depressa, Orthis canalis or ale- 

 gantula, O. hybrida, Delthyris radiata, D. sinuata, Atrypa 

 affinis, A. imbricata, A. cuneata, Conularia quadrisulcata, Bu-^ 

 mastis Barriensis, Homalonotus delphinocephalus, Hypantho- 

 crinites decorus, Cyathocrinites pyriformis. There must, doubt- 

 less, be many species of corals common to the two formations. 

 According to the geographical arrangement, the Ontario divi- 

 sion terminates upwards with the Niagara group; but in the 

 chronological table this group forms the lower part of the middle 

 division. D. D. O. 



(^To he continued.) 



Art. X. — Observations made at New Haven, Conn., on the 

 Shooting Stars of the August Meteoric Period, in 1844; com- 

 municated by E. C. Herkick. 



The nights of the 1st, 2d, and 3d of August, 1844, were too 

 cloudy here to permit any satisfactory celestial observation. 

 The evening of the 4th was beautifully clear : — watching alone 

 for twenty minutes ending 10 p. m., I saw five shooting stars. 

 The evening of the 5th was like the previous one : Mr, F. Brad- 

 ley and myself watched twenty five minutes, ending lOh. 5m., 

 and saw but ten of these meteors. These periods are evidently 

 too short, but may perhaps serve to show that no great increase 

 in number was yet observable. The night of the 6th was in 

 part stormy, and afforded no opportunity for a look-out. The 

 evening of the 7th was somewhat hazy. Mr. W. M. Smith 

 watched from 9h. to lOh., and saw seven meteors. The evening 

 of the 8th was nearly clear. Between 9h. and lOh. I noted in 

 the N. E. quarter fifteen meteors, more than half with trains, but 

 none very conspicuous : during the same hour at another station, 

 Mr. S. noted tioenty 07ie, his quarter being more easterly. 



The evening of the 9th was mostly overcast as late as eleven 

 o'clock. At Nantucket, Mass., the sky was clear for about an 

 hour, (9 to 10 ?) and two observers saw " upwards of thirty me- 

 teors within a period of forty five minutes." A faint aurora in 

 the form of streamers, is reported by Mr. William Mitchell as 

 having been visible during the hour. 



