IMPORTANT NOTICE. 



From this date the First Series of this Magazine (1864—1889) can 

 be obtained only in complete Volumes, bound or unbound. 



A limited number of sets, from Vol. x to Vol. xxv inclusive, are 

 offered at the reduced price of £2 15s. per set net (in parts), or of five 

 consecutive Vols, at £1 per set net (if bound. Is. per Vol. extra). 



Owing to inequality in stock, certain of the Vols, i to ix can be had 

 separately at lOs. each. 



The Editors will pay 2s. each for clean copies of Nos. 7, 9, 20, 

 and 21 of the First Series. 



Apply to the Publishers. 



May 29^, 1893. 



Complete in one thick volume, royal 8yo, with 59 plates engraved on copper 

 from the author's drawings : 



A MON-OGRAPHIC REVISIOlN" AND SYNOPSIS OF TEE 



*-^ TRICHOPTERA OF THE ECTROPBAN FAUNA. By Robert McLachlan, 

 F.R.S., F.L.S., &o. Price, £3 10s. 



First Additional Supplement (with 7 plates), Price, Ss. 



London : Gurney & Jackson, 10, Paternoster Row, E.G. 



Berlin: Friedlandkr und Sohn, 11, Garlstrasse. 



Scale of Charges for Advertisements. 



Whole Page £2. Half Page £,1 is. Quarter Page 12s. 6d. 



Lowest charge, 3s. 6d. up to 3 lines ; 6d. per line afterwards. 

 Bepeated or continuous Advertisements per contract. 

 There is no charge for Lists of Duplicates and Desiderata. 



"NATURE/^ 



A WEEKLY ILLUSTRATED JOURNAL OF SCIENCE. PRICE 6d.. 



" Nature " contains Original Articles on all subjects coming within the domain of 

 Science, contributed by the most eminent scientific writers of the day. It also 

 contains Reviews of all recent scientific works ; Gorreepondence Columns, which 

 form a medium of scientific discussion and of intercommunication among men of 

 Science ; Accounts of the leading Scientific Serials ; Abstracts of the more 

 *-aluable papers which appear in foreign journals ; Reports of the Proceedings of 

 the Principal Scientific Societies and Academies of the World ; and Notes on all 

 matters of current scientific interest. 



SUBSGUEPTIONS TO 



yearly 18 



Half- yearly 14 6 



Quarterly 7 6 



£ s. d. (To all placet Abroad J. £ s. d. 



Yearly 110 6 



Halt- Yearly 16 6 



Quarterly 8 



Money Orders to be made payable to MACMlLIiAN and CO., Ltd. 

 Office: St. Martin's Street, London, W.C. 



