‘ 409 
“NOTES AND COMMENTS. 
A MUSEUM GUIDE. 
We have seen various and numerous Guides to Museums, 
but we think one of the most interesting, and one of the best 
illustrated, is the General Guide to the Exhibition Halls, 
American Museum of Natural History, New York, which has 
been sent to us by Dr. F. A. Lucas, the Director. The author- 
ities at the American Museum have presented the more in- 
teresting features of the collections under their charge in a 
‘ This largest and most formidable fish, living or extinct, of which we have any record, 
frequented the coast of South Carolina in Tertiary time. The jaws measure nine feet 
across; estimated length of fish, eighty feet, as large as a sulphur-bottom whale.’ 
popular way. We are kindly permitted to reproduce one of 
the illustrations. 
AMMONITES BRAIKENRIDGII. 
The interesting specimen shewn in the adjoining illustra- 
tion is figured in part 10 of Yorkshire Type Ammonites by 
Mr. S. S. Buckman, to whom we are indebted for its loan. 
It shews an unusually perfect termination or lip. This specimen 
is from the Ironshot Oolite of Dundry. Although the species 
is not a Yorkshire type, yet as Am. bratkenridgit has been 
claimed as a Yorkshire species (Morris and Lycett, 1850), it is 
1913 Dec. 1, 
2¢ 
