319 
than pelicanus onocratulus, and larger than P. carho ; of one of the 
large curlews, with naked necks, disposed by Gmelin under the genus 
Tantalus ; of a woodcock, a starling, and a sea-lark ( alouette de mar.) 
Judging from the form and proportions of a bone which I have in 
the marly schist of CEningen, eight inches in length, I suppose it to 
have been the tibia of some water -fowl. Its extremities are very much 
injured, and the bone has been split through its whole length with the 
stone ; so that no characteristic marks can be observed. 
On the back of the stone, and in different parts where it has been 
shivered, the seeming remains of feathers are observable. Another 
specimen, a slender bone seven inches in length, so deeply imbedded 
in the hard lime-stone of Stunsfield, in Oxfordshire, as not to allow 
either of its extremities to be examined, is, I have very little doubt, 
also either the tibia or tarsal bone of some bird. 
LETTER XXIII. 
FOSSIL REMAINS OF MAMMALIA CETACEA, WHALES, &C AM- 
PHIBIA TRICHECUS, SEALS, &C SOLIPEDES, THE HORSE. 
Having now to commence the examination of the fossil remains of 
those animals which are comprised in the Linnean class Mammalia , I 
feel that it may be necessary to endeavour to satisfy you with respect 
to the manner in which this part of my task is accomplished. I fear 
that you will, at first, experience feelings of disappointment, on my 
avowing to you, that the following pages will almost entirely be em- 
ployed in placing before you the discoveries which have been made by 
