MONODON MONOCEROS. b23 
In the Hunterian Collection of Fossils in the Royal 
College of Surgeons, there is a small fragment of the tusk 
of a Narwhal, No. 1439, partly decomposed and absorbent 
from the loss of animal matter, which is stated to be 
‘from Baumann’s Cave.” This cave is situated on the 
north-east border of the Hartz, in Blankenburg, and is 
AS 
ww 
described by Leibnitz in his ‘ Protogza.’ 
* See my catalogue of the Fossil Mammalia and Aves in the Museum of the 
Royal College of Surgeons of England, 4to., p. 286. 
Fig. 216. 
Base of skull of thick-toothed Grampus. Fen, Lincolnshire. 
