1894. ] NEW YORK ACADENY OF SCIENCES. 169 
Wellington, New Zealand, but he has never heard of its ogcur- 
ence before in America. Sponge spicules are not uncommon in 
Lloyd’s Neck diatomaceous earth, and several forms are figured. 
[Pl. IV., Figs. 6, 7 and 8.] Samples of the red and brown clay 
from the section given above were examined, but no organic re- 
mains were found in them. 
PL. IIT., Figs. 19 and 20, are spicules from the fireclay at Kreis- 
cherville, Staten Island. In the Kaolin found near Kreischer- 
ville were discovered a number of diatoms, which Dr. Ward in- 
forms me are either Cocconeis placentula, Ehr., or Cocconeis 
pediculus, Ehr. Their occurrence is also of great interest, as 
these kaolins are known to be middle cretaceous beyond doubt. 
It seems to me that the results obtained from this hasty ex- 
amination of the clays are sufficiently encouraging to warrant a 
further and detailed search. The correlation of strata by means 
of their microscopic organisms has been successfully tried else- 
where, and further work might prove it applicable to the clays 
of Long Island, whose age and stratigraphical relations need 
much further elucidation. 
CotumBIA CoLLEeGE, March 19th, 1894. 
The Section adjourned at 9:55. 
J. F. Kemp, 
Secretary of Section and Recording Secretary. 
STATED MEETING. 
March 26th, 1894. 
The meeting organized with President J. K. Rres in the chair. 
In the absence of the Recording Secretary, the minutes were 
read by Prof. Hallock and were approved. Eighteen persons 
present. 
A paper by O. F. and A. C. Cook, entitled “ A Monograph of 
Scyonotus,” was read by title and referred to the Publication 
Committee. 
The Section of Astronomy and Physics then organized with 
Prof. Rees as Chairman and Prof. Hallock as Secretary pro 
tempore. 
