212 Canadian Record of Science. 
_ ages, and every paleontologist is familiar with the fact that 
in all the older formations even the hardest calcareous fos- 
sils have been affected with accidents of this nature. 
There are even a few examples in the collections which 
would seem to indicate that portions had been broken off, 
perhaps by the action of the waves, previous to fossilization. 
It is not unlikely that some of the specimens have been loose 
and subject to the action of the waves and currents before 
being imbedded. 
5. An interesting feature in connection with the specimens 
of Kozoon from St. Pierre, noticed in previous papers, 
is the occurrence of layers filled with little globose casts 
of chamberlets, single or attached in groups, and often ex- 
actly resembling the casts of Globigerine in greensand. On 
weathered surfaces they were often especially striking when 
examined with the lens. In some cases, the chamberlets 
seem to have been merely lined with serpentine, so that 
they weather into hollow shells. The walls of these cham- 
berlets have had the same tubulated structure as EKozoon ; 
+ 50 
Fig.8. Sections and casts of detached chamberlets, magnified. 
