Zoology. 839 
in the archean schists of that region. The locality has been 
known for some time, and is quite noted as having afford data 
is a schist composed of microcline, chlorite, a little garnet and 
other accessory components. It is interstratified with gneiss, and 
is about fifteen metres in thickness. A part of the organic matter 
is in little lumps and irregularly shaped pieces, which are cs 
e 
by the author to be original. It is sometimes entirely surroun 
The experimental 
work of’ this chemist substantially re-enforces the theory which 
supposes petroleum to be the result of the distillation of the remains 
and at a temperature of 320°—400°. 
ZOOLOGY. 
ZooLocIcaL News.—Porirera.—Vol. XXV. of the Chal- 
lenger Reports is entirely devoted to the Tetractinellide, which are 
illustrated by forty-four plates, Professor Sollas classifies the 
. ( ti , containing the 
single sub-class Calcarea; and Class (2) Micromastictora, including 
mom Jahrb. f. Min., ete., 1888, ii., p. 1. 
er. d. d. Chem. Gesell., 1888, p. 1816. 
