THE IRISH NATURALIST for I9I2 (twelve parts) Will De sent to any 
Address for 5s. Subscriptions should be sent to Messrs. Eason and 
Son, Ltd., 40 Lower Sackvllle-street, Dublin. 
A Monthly Ulustrated fournal of 
NATURAL HISTORY FOR THE NORTH OF ENGLAND. 
Edited by T. SHEPPARD, F.C.S., and T. W. WOODHEAD, F.L.S,, 
MUSBUM, HULL. TECHNICAX Cot.LEQE. HODDERSFIELD 
WITH THE ASSISTANCE AS RBFEaEES IN SPECIAL DEPARTMENTS OF 
J. GILBERT BAKER, F.R.S., F.L.S., GEO. T. PORRITT, F.L.S., F.E.S. 
PERCY F. KENDALL, F.G.S., JOHN W. TAYLOR, 
T. H. NELSON, M.B.O.U., WILLIAM WEST, F.L.S. 
Thia Journal is one of the oldest Scientific Periodicals in the British Isles, dating back to 1833. 
London: A BROWN & SONS. Ltd., 5, FARRINGDON AVENUE, EC. 
PRICE SIXPENCE NET. BY POST SEVENPENCE. 
Annual Subscripfion, 6s. 6d,, post free; throutjh Booksellers, 6s. yet. 
Connnunications to be addressed to the Editors of the Naturalist, The Museum, Hull. 
NATURE. 
A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. 
l-RICt: 81XPJ£N<B. 
" NATURE " contains Original Articles on ail subjects coming witliln 
ttie domain of Science, contributed by tlie most eminent scientific writers 
of tlie day. It also contains Reviews of ail recent scientinc works ; 
Correspondence Columns, wnicti form a medium of scifentinc discussion 
and of intercommunication among men of Science ; Accounts of the 
leading Scientific Serials ; Abstracts of the more valuable papers which 
appear in foreign journals ; Reports of the Proceedings of the Principal 
Scientific Societies and Academies of the World ; and Notes on ail matters 
of current scientific interest 
SUBSCRIPTIONS TO "NATURE. 
£ s. d. 
Yearly .18 
Half- Yearly 1^ 6 
Quarterly 7 6 
(f*fc A charge of Sixpence is made for changing Scotch and Irish Cheques. 
Chequee and Money Orders to be made payable to Machillan & Co., Ltd., St. Martik* 
London, W.C. 
( To all places Abroad. ) £ « d. 
Yearly 1 10 6 
Half-Yearly - 15 6 
Quarterly ^ 8 
