DEPARTMENT OF GEOLOGY. 159 



Porifera. — Two Cretaceous Sponges from Farringdon 

 and from Haldon Hill. 



Va7'ious Invertebrata. — A hundred and seventy-five 

 Inverfcebrata from the Post-Pliocene, Pliocene, Cretaceous, 

 and Jurassic rocks of the Alpes Maritimes. 



Five problematical fossils from the Kimmeridge Clay, 

 Weymouth. 



Seventy-three Invertebrata, chiefly from the London 

 Clay. 



Plantce. — Fifty-two microscope slides of Carboniferous. 

 Plants, prepared by J. Lomax. 



C. — By Exchange. 



Mammalia. — Plaster cast of skeleton of Machcerodus 

 neogceiis from Pampa Formation, Buenos Aires. From 

 National Museum, Buenos Aires. 



Ten piaster casts of feet of ancestral horses. From 

 American Museum of Natural History, New York. 



Three polished sections of Cetacean teeth and one section 

 of rib from Red Crag. From the Surveyors' Institution, 



Reptilia. — Plaster model of the skeleton of Triceratops^ 

 from Upper Cretaceous, Wyoming, From U.S. National 

 Museum, Washington, 



Pisces. — Plaster casts of Ichthyodectes maratkonensis 

 from Lower Cretaceous, Central Queensland, and Ganoi'hyn- 

 chus sussmilchi from Devonian, New South Wales. From 

 Australian Museum, Sydney. 



Forty-six teeth and spines of Elasmobranch fishes from 

 Carboniferous Limestone, Tournai, Belgium. From Monsieur 

 A. Piret. 



Ten ganoid fishes (Colohodus, Dapedius, SpanioUpis, 

 Heterolepidotus, and Ophiopsis) from the Upper Trias of 

 Hallein, Austria. From K. K. montanistische Hochschule, 

 Leoben. 



Mollusca. — Ordovician and Triassic Cephalopoda from 

 Germany. From Mr. E. Mascke. 



Seventeen plaster casts of Ammonites from the Spiti 

 Shales, Himalaya. From University of Vienna. 



A Carboniferous Coelonautilus ; a Kimmeridgian Ostrea ; 

 three Ammonites and a Belemnite from Jurassic, Himalaya. 

 From the Surveyors' Institution. 



Echinoderma. — Crinoid columnals from Jurassic, 

 Himalaya. From the Surveyors' Institution. 



Plaster casts of type specimens of Plagiopygus daradensis 

 and Galerites ahbreviata. From National Museum of Natural 

 History, Paris. 



