JUST PUBLISHED. 8vo. 5s. net. 



THE GROWTH OF GROUPS IN 

 THE ANIMAL KINGDOM. 



By R. E. LLOYD, M.B., D.Sc.Lond. 



Indian Medical Service, Professor of Biology (pro. tern.) in the 



Medical College, Calcutta. With Coloured Plate and 



other Illustrations. 



LONGMANS, GREEN and CO., 



39, Paternoster Row, London, E.C. 



TO ORNITHOLOGISTS AND MUSEUMS. 



W. F. H. ROSENBERG, 



IMPORTER OF EXOTIC ZOOLOGICAL SPECIMENS, 

 57, Haverstock Hill, London, N.W., 

 "iJEGS to announce the publication of a new Price List (No. 17) of 

 -J-' BIRDS' SKINS. This Catalogue contains nearly 6000 Species, and 

 is the largest and most complete Price List of Birds ever published. It is 

 arranged in systematic order, with authors' names, indications of localities, 

 and an index to Families. It will be sent gratis and post free on applica- 

 ton, as will the following lists : — No. 14. Mammals. No. 15. Birds' Eggs. 

 No. 16. Reptiles, Amphibia, and Fishes. No. 12. Lepidoptera. No. 13. Cole- 

 optera. Largest stock in the world of specimens in all branches of Zoology. 

 Specimens sent on approval. Please state which lists are required. 



WATKINS & DONCASTER, 



Manufacturers of Cabinets and Apparatus for 

 Collectors of Birds' Eggs, Insects, Plants, &c. 



A large stock of Insects, Birds' Eggs, &c. List of Clutches of Birds' 

 Eggs on application. Climbing Irons, best steel, with straps complete, 

 5s. per pair. Egg Collector's Outfit, containing Drills, Blowpipes, and all 

 Requisites complete, with Book of Instructions, post free, 3s. 3d. Label 

 Lists of every description. Birds and Animals stuffed and mounted in 

 Natural Positions. For particulars see our Catalogue, one hundred pages. 

 36, STRAND, LONDON. W.C. 



2^0 OOO British Lepidoptera, Coleoptera, Tropical Butter- 

 *-* ' flies ; also British Birds. Type Collections for Museums, 



&c, at very moderate prices. Life-histories of British Lepidoptera, mounted 

 on food-plants in neat glazed cases ; selections on approval. A Collection 

 of 1000 British Plants, named and mounted. Glazed cases for various 

 Natural History objects from 2s. 6d. doz. ; second-hand Cabinets, Store- 

 boxes, &c. Lists from — 



A. FORD, South View, Irving Road, Bournemouth, Hants. 



