MR HARDWXCKE'S PUBLICATIONS. 



THE POPULAR SCIENCE REVIEW, No. XXV., for October, Price 2s. 6d. } contains 

 The Microscope in Geology. By D. Fokbes, F.R.S. Illustrated. 

 Why the Leaves Fall. By M. T. Masters, M.D., F.L.S. 

 A Message from the Stars. By Robert Hunt, F.B.S. 



On the Planarise of our Ponds and Streams. By E. Ray Lankesteb. Illustrated. 

 Physics of the Brain. By B. TV. Richardson, M.A., M.D., F.R.S. 

 Ventilation and Ventilators. By Dr. Lawson. Illustrated. 

 Reviews of Books. 

 Summary of Scientific Progress. 



POPULAR SCIENCE REVIEW. Completion of Vol. VI. The Sixth Volume will 

 ready October 5th, in cloth, price 12s., containing Articles on topics of current interest by the 

 Scientific Writers of the day. Complete Sets may still be had, price, in numbers, £3. V. o«- ; 

 Vols., cloth, price £3. 14s. 6d. ; or in half-morocco, for the Library, price £4. 12s. Qd. 



SOWERBY'S ENGLISH BOTANY, No. 54, Price 5s., is now ready. 



SOWERBY'S ENGLISH BOTANY. 



Horehounds 

 Mints 

 Thymes 

 Pennyroyals 

 Marjorams 

 Calamints 

 Clarys 

 Balms 

 Skullcaps 

 Seven Parts at 5* 



Woundworts 



Hemp-nettles 



Dead-nettles 



Bugles 



Germanders 



Buglosses 



Lungworts 



Grornwells 



Forget-me-nots 



Volume VII. contains all the 



Alkanets 



Comfreys 



Hounds'-tongues 



Buttersvorts 



Bladderworts 



Oxlips 



Primroses 



Ivydeaved Cyclamens 



Loose-strifes 

 Pimpernels 



Thrifts 

 Sea-lavenders 



Plantains 

 Rib-grasses 

 Rupture-worts 

 Knawels. 



complete, in cloth, 38s. ; half-morocco, 4,2s. ; whole morocco, 48*. Gd. 



-VICKE'S SCIENCE GOSSIP, No. 34, October. Price 4rf, 



[odium of Interchange and Correspondence for Students and Lovers of Xatiire. 

 >urce of ready and pleasant chat in the drawing-room or parlour. 

 r olumes for 1865 and 1866, price os. each. 



An Illustra' 



A never-fau 



Illustrated with many Cuts. 



To Naturalists, Microscopists, and Field Clubs. 



Fcap. 8vo, cloth, 114 Illustrations, price 8*. fid., , 



COLLECTOR'S HANDY-BOOK of A.LG2B, DIATOMS, DESMIDS, FUN' 



ICHE^S. MOSSES, etc. ; with Instructions for their Preparation and the formation ot an 

 mom. Edited by the Rev. TV. TV. Spicer, M.A. Coxtexts :— Alga? generally; ria T; in] 

 Free Diatomacea? ; Stipitate Diatomaeea? ; Characteristics of Diatomaceae ; Desmidiacea\ a' 

 minute Alga; Filamentous Algae; Oscillatorise ; Gelatinous, Crustaceous, and StonediKe - - 

 Marine Algae; Charaeese; Fungi; Lichens; Mosses and their Allies ; Ferns and Flowering * 

 The Herbarium. 



HROOMS AND TOADSTOOLS. How to distinguish easily the Differences 



lible and Poisonous Fungi, with Two Large Sheets, containing Figures of Twenty-nine Edio' e 

 --one Poisonous Species. Drawn the natural hue, and coloured from living speem 



8TOH (r. Smith, F.A.S.L.. etc In sheets, with Book, price 6s- ; on CWlTM 

 X'ket, price 10*. 6d. ; on canvas, with rollers and varnished, for hanging up, 10^ 



in 

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cloth * 



London : ROBERT HARDWlCKE, 10:2, PICCADILLY, W. 



