222 Geology. 



Owen's " British Fossil Mammals," were presented by Sir Charles 

 Lyell, Bart. 



Valuable acquisitions by purchase, from the Lower Lias 

 of Lyme Regis, included the greater part of the skeleton of a 

 Pterodactyl, Dimorphodon macronyx, and a nearly complete skeleton 

 of Ichthyosaurus tenuirostris both subsequently described by Owen 

 in the Monographs of the Palseontographical Society. The type- 

 skull of Placodus gigas from the Bavarian Muschelkalk was 

 also purchased. Mr. Mansel-Pleydell continued his donations of 

 Kimmeridgian Reptilian remains. 



An important small collection of Vertebrata, including the 

 skeleton of a Rodent, remains of Coluber, Crocodilus, and Palseo- 

 batrachm, from the Miocene Lignite of Rott, near Bonn, was 

 purchased. With this collection were about 150 fossil insects, 

 including many described by Von Heyden and H. Hagen in 

 Palseontographica, vols. viii., x., and xiv. 



A very fine slab of Pentacrinus fossilis from the Lower Lias 

 of Lyme Regis, and many Hippurites from the Cretaceous of 

 Aude, France, were purchased. Some type-specimens of brachio- 

 pods, from the Neocomian of Upware, were presented by Mr. 

 J. F. Walker. 



Purchases of fossil plants included specimens from Clallam 

 Bay, Washington Territory, U.S.A. ; from Vancouver ; and from 

 Skedegate Bay, Queen Charlotte's Islands. 



Total number of acquisitions, 10,372. 



1869. 



A valuable collection of remains of Prehistoric Mammalia 

 from a freshwater deposit in the valley of the Lea, near Waltham- 

 stow, Essex, was obtained by purchase from Mr. Joseph Wood. 

 In addition to human remains, it comprised bones and teeth of 

 wolf, fox, beaver, horse, wild-boar, red deer, roebuck, fallow deer, 

 reindeer, elk, ox, and goat. The discovery was described by Dr. 

 H. Woodward (Geol. Mag., vol. vi. 1869). 



Mr. J. C. Mansel-Pleydell continued his donations of Kim- 

 meridgian Reptilia, presenting this year the type-specimens of 

 Ischyrosaurus manseli and Steneosaurus manseli, described by Mr. 

 J. W. Hulke. The unique tail of the Pterodactyl, Dimorphodon 

 macronyx, from the Lower Lias of Lyme Regis, described by Prof. 

 Owen, was purchased with various other English Reptilian 

 remains. 



The collection of fossil Fishes was enriched by the purchase of 



