1892.] NEW YORK ACADEMY OP SCIENCES. 105 



Mr. Tatlock gave an interesting description of the recent 

 auroral displays, as follows : — 



Remarks on the Aurora of February 13, 1892. 



The aurora was observed from about 6.30 to 7.15 P. M. in West 

 YSth Street, near Riverside Drive, where an uninterrupted view was 

 secured of the phenomenon. This aurora presented some curious 

 and unique features, the principal of which are as follows: 



ERRATA. 



On p. 129, 13th line from top, /or "in less characteristic schists by G. H. 

 Williams from the contacts of the Cortlandt series on the Hudson," read "in 

 Europe in less characteristic schists by Teller and von .John at Klausen in the 

 Tyrolese Alps. "2 



On same page, let the footnotes read as follows : — 



1 Albany Granite and its Contact Phenomena. A. J. S., Jan. 1881. 



2 Geologisch-petrographische Beitrage etc. .Jahrbuch d. k. k. geol. Reichsanst. 

 xxxii. rj89, 1882. 



On p. 130, 16th line from top,/or " 0.0021, 0.0021, 0.00224, and 0.0026 per 

 cents." read " 0.21, 0.21, 0.224, and 0.26 per cents." 



Vol. XL— 8 



