568 Scientific Notices, 



remains are met with at a depth of from 10 to 20 feet; the super- 

 strata generally consisting of 8 or 10 thin layers of lias, between 

 which are others, much thicker, of friable clay-slate. One of 

 these portions, consisting of the jaws and part of the head, mea- 

 sures only 19 inches. The workmen say that such fossils are not 

 often met with, but that one or two instances can be remembered 

 of these extinct animals having been found in nearly an entire 

 state: the same stratum contains a thin layer of small bivalve 

 shells principally of the genus Ostrea, closely crowded together. 



We may further remark, that bones of gigantic animals are 

 sometimes found in the new sandrstone formation in the imme-? 

 diate vicinity of Warwick ; they are deposited at a depth of 

 about 30 feet in the solid stone, on the surface of a thin hori- 

 zontal layer of a more friable and earthy kind, called by the 

 workmen dirt, W. S. 



PUBLIC INSTRUCTION IN ?0OLOGY, 



In the present dearth of means for obtaining instruction in 

 5Joological Science, in this country, as well as to show that con- 

 siderable interest is taken in the subject by the public, we think 

 it will be useful to notice several courses of public lectures on 

 subjects connected with Zoology, which are now delivering in 

 London. 



At the Royal Institution, Dr. Harwood, F.L.S., is delivering 

 a course of popular lectures on the Natural History of the Animal 

 Kingdom, comprehending a survey of the classes Mammalia and 

 lairds. This course is illustrated by a series of excellent drawings 

 of the principal animals described, and of such portions of their 

 anatomical structure as are of peculiar importance ; together with 

 specimens of the bones, horns, &c. of the animals. 



At the London Institution, Dr. Harwood is delivering the 

 same course ; and we feel much pleasure in stating that at both 

 institutions he is attended by a very numerous and attentive 

 audience. After his lecture on the Pachi/dermata, on the 20th of 

 March, Dr. Harwood distributed several hundred prospectuses of 

 ^he New Zoological Institution,* giving at the same time a brief 



* This Prospectus we have rpprinted at p. 285 oi the present volume. 



