Vi CONTENTS. 



Page 

 Esq., F.R.S. ; New Orang-Outang ; A Popular Introduction to the 

 Study and Classification of Spiders and Mites, by Adam White, 

 F.L.S.; Meteorological Observations and Table 285—288 



NUMBER CXXXIV. 



XXVII. Notes on the Habits of certain Exotic Spiders. By Ar- 

 thur Adams, late Assistant Surgeon of H.M.S. Samarang 289 



XXVIII. On the Fossil Botany and Zoology of the Rocks asso- 

 ciated with the Coal of Australia. By Frederick M'Coy, M.G.S. & 

 N.H.S.D. &c. (With nine Plates.) 298 



XXIX. Critical Remarks upon Mr. J. E. Gray's published Catalogue 

 of the specimens of Mammalia and Birds presented by B. H. Hodgson, 

 Esq., to the British Museum. By Ed. Blyth, Curator to the Museum 



of the Asiatic Society, Calcutta, &c 313 



XXX. Note on Dr. Meigs's Memoir on the Reproduction of the 

 Opossum. By Prof. Owen, F.R.S 324 



XXXI. Horse Zoologica? : — Ornithology of the Island of Tobago. 



By Sir William Jardine, Bart., F.R.S.E. & F.L.S 328 



XXXII. On the different Beds of the White Chalk, and on the 

 Faults and Dislocations which they exhibit. By J. Toulmin Smith, 

 Esq 334 



XXXIII. Description of Clinteria Hoffmeisteri, a new species of the 

 family Celoniadce, from North India. By Adam White, F.L.S., 

 Assistant Zool. Dep. British Museum 341 



XXXIV. On Conjugation in the Diatomacece. By G. H. K. Thwaites, 

 Lecturer on Botany and Vegetable Physiology at the Bristol Medical 

 School. (With a Plate.) 343 



New Books :. — Monographia Heliceorum Viventium, Auctore Ludovico 

 Pfeiffer, Dr. — Fauna littoralis Norvegiae, oder Beschreibung und 

 Abbildungen neuer oder wenig bekannten Seethiere, nebst Beo- 

 bachtungen iiber die Organisation, Lebensweise u. Entwickelung 

 derselben von M. Sars, Doctor der Philosophic, &c. 345 — 348 



Proceedings of the Zoological Society 349 



Description of a new rapacious Bird in the Museum of the Academy of 

 Natural Sciences of Philadelphia, by John Cassin ; On the Deve- 

 lopment of the Echinidee, by Dr. Dufosse ; On the Range of the 

 Beaver in the United States, by S. B. Buckley ; Enemies to 

 Science among the Nobles ; Meteorological Observations and 

 Table 356—360 



NUMBER CXXXV. 



XXXV. Observations on the Structure of the Fruit of the Cruciferte. 



By L. C. Treviranus , 361 



