APRIL, 1891. Part IV, 



THE 



AN 



ILLUSTRATED MAGAZINE 



OF 



NATURAL HISTORY, 



CONDUCTED BY " 



JOHN E. ROB SON, F.E.S,, Hartlepool, 



WITH THE ASSISTANCE IN VARIOUS DEPARTMENTS OF 



G. C. BIGNELL, F.E.S., Plymouth ; JOHN GARDNER, F.E.S. Hartlepool; 

 C. .A. BRIGGS, F.E.S., London; LINN^US GREENING, Warrington ; 



S.J. CAPPER, F.L.S., F.E.S, Liverpool; C. S. GREGSON, Liverpool; 

 T. D. COCKERELL, London; A. F. GRIFFITH, M.A., Brighton; 



C.W. DALE, F.E.S., Dorset; G. A. LEWCOCK, London. 



GEO. ELISHA, F.E.S., London ; J. P. SOUTTER, Bishop Auckland ; 



Dr. ELLIS, F.E.sT, Stoke-on-Trent; W. H. TUGWELL, Ph. C, Greenwich ; 



SYDNEY WEBB, Dover. 



PRICE SIXPE^^CE, 



WITH SUPPLEMENT. 



XouDou : 



SWAN SONNENSCHEIN & Co., Paternoster Square. 



