INDISPENSABLE TO STUDENTS AND COLLECTORS. 



THE JOURNAL OF CONCHOLOGY. 



Contains Descriptions and Figures of New Species and Varieties, Geographical 

 Lists, and Original Articles, dealing with all departments of the science, by the 

 leading Conchologists of the day. — Vol. IV. commenced January 1883. 



Price 4s. per annum. 



Leeds : TAYLOR BROTHERS, The Steam Colour Printing Works. 



VOLS. I., II., & III. MAY STILL BE HAD. 



The Entomologist's Monthly Magazine. 



Price 6d. monthly, 24 pages 8vo, with occasional Illustrations. 



Conducted bv J. W. DouGLAS, R. MacLachlan, F.R.S., 

 C. G. 'Barrett, H. T. Stainton, F.R.S., &c. 



This ^Magazine, commenced in 1864, contains standard Articles and Notes on 

 all subjects connected with Entomology, and especially on the Insects of the 

 British Isles. 



Subscription 6s. per volume, post free. The volumes commence with the 

 June number in each year. 



The early volumes are out of print, but can be occasionally obtained by pur- 

 chasers of the entire series. In this case the price of vols I. to V. is los. per vol. 

 The succeeding vols, (strongly bound in cloth) can be had separately or together 

 at 7s. per vol. 



London : JOHN VAN VOORST, i, Paternoster Row. 

 N.B. — Communications, &c. , should be sent to the Editors at the above address. 



THE JOURUAL OF MICROSCOPY AND MTliML SCIENCE. 



PUBLISHED QUARTERLY, PRICE i;6. 



This well-known Journal, the recognized _ organ of the POSTAL MICROSCOPICAL 

 SOCIETY, contains a number of valuable and interesting articles relating to every department 

 of Microscopy and the allied Sciences. 



These are all written bj' experienced ]\Iicroscopists and Specialists in their various departments 

 of Science, and are illustrated by a number of Lithographic Plates — making it not only one of the 

 largest and cheapest, but also one of the most widely circulated Journals of its clas-;. 



Other special features of the Journal are "Half-hours at tfie Microscope with 'Mr. Tuffen 

 West, F.L.S., F.R.M.S., etc.;" '' Selected Notes from the Society's Note-books." New books 

 relating to Microscopy, or to any branch of Natural Science, are carefully reviewed. Correspon- 

 dence on matters of ilicroscoplc or Scientific interest is inserted. There is also a section devoted 

 to "Current Notes and Memoranda," "Exchanges," &c. 



The Journal of Mickoscopv and Natural Science is edited by Mr. Alfred Allen, 

 Hon. Sec. of the Postal Microscopical Society, under the direction and with the assistance of the 

 Committee ; and may be had of all Booksellers. 



London : BAILLIERE, TINDALL & COX, 20, King William St., Strand, W.C. 

 NO IV ENLARGED TO TWENTY PAGES. 



THE NATURALIST'S WORLD. 



Illustrated. Price Twopence Monthly. 



"A capital little monthly." Bradford Observer. 



"Every page is interesting." MidlaJid Gazette. 



The following interesting articles have appeared in the last ,fe\v numbers : — 

 The Preparation of Rock vSections for the Alicroscope ; Variation in Lepidoptera 

 (with illustrations) ; The Red Chalk of Hunstanton (with illustrations) ; The 

 Phenomena of Exuviation in the Brachyura (with illustrations) ; A glance at 

 Spanish Coleoptera (\^ith an illustration); The Gnat (with illustrations); Butter- 

 cups and Daisies (with illustrations) ; Practical Snail Hunting (with illustrations) ; 

 Notes and Queries, etc., etc. 



Specimen copy sent post free for 2id. Yearly Suhscription 2s. 6d. post free. 

 Offices: ILKLEY, YORKS. 



London : W. SWAN SONNENSCHEIN & CO. Of all Booksellers. 



