Davis: Staten Island Grouse Locusts 149. 



Tettix ornatus Say. April. 



Tettix triangularis Scudd. May, August. 



Tettix arenosus Burm. April, May, June, July, October. 



Tettigidea davisi Morse. April, June, August. Also collected 

 at Perth Amboy, N. J., May 31, and Jamesburg, N. J., August 31. 



Tettigidea- acuta Morse. Male and female taken some years 

 ago in April. Prof. Morse says of these specimens : " These are 

 the first examples I have seen since the preparation of the original 

 description which was based on specimens in the Scudder col- 

 lection taken by or secured from Uhler and labeled simply 

 'N. Y.'" 



Tettigidea parvipennis Harris. April, May, June, July, October., 



Tettigidea pari'ipennis pennaiaMovse. This long-winged form' 

 has been collected in April, May, June, September. 



Tettigidea lateralis Say. March, October. 



Tettigidea lateralis polymorpha Burm. This short-winged form, 

 has been collected in October. 



Charred Wood in a Concretion 1 



By William T. Davis 



Last October while examining the cliff facing Raritan Bay at 

 Morgan's, N. J., I found a small broken limonite concretion that 

 contained and had been formed about a piece of charred wood. 

 The cavity in the concretion is five-eighths of an inch in diameter,, 

 and where the wood has been removed the imprints of five annual 

 rings are to be seen. These impressions were made when the 

 iron concretion was formed about the piece of wood and are very 

 plain. We have found charred wood in the clay at Kreischerville, 

 and Dr. Hollick in the Proceedings i : 21. Jan. 1906, gives some 

 interesting observations concerning this wood, which was charred 

 by fire before the advent of man. This concretion, however, is. 

 of a much later date. 



1 Presented December 19, 1908. 



