This Day is published, 



In small Octavo, price 16s., or in Demy Octavo, 20s. 

 Part I. of. 



3UTLINES of the GEOLOGY of ENGLAND and WALES, 

 with an Introductory Compendium of the General Principles of 

 :iat Science, and comparative Views of the Structure of Foreign Countries. 

 " Opinionum commenta delet dies. Naturae judicia confirmat."— Cicero. 



By the Rev. W. D. CONYBEARE, F.R.S. M.G.S. &c. 

 and WILLIAM PHILLIPS, F.L.S. M.G.S., &c. 



London : Printed and Published by William Phillips, George-yard, 

 jOmbard-street. 



CATON ON DEBILITY, ILLUSTRATED WITH CASES. 



This day was published, price 3s. 6d, a New Edition of 



PRACTICAL OBSERVATIONS on the DEBILITIES, natural 

 and contracted, of the GENERATIVE ORGANS of both Sexes; 

 ncluding Remarks on Onanism, Seminal Weakness, Nocturnal Emission, 

 31efct, Tabes Dorsalis, Fluor Albus, ^c. with the Theory of Generation. 



By T. M. CATON, Surgeon, 



No. 10, Stanhope-street, Newcastle-street," Strand ; 



Late of the United Hospitals of St. Thomas and Guy. 



Sold by W. Neely, 22, Change-alley ; and C. Chappie, 59, Pall*mall ; 

 ar by the Author, as above. 



Where may be had, 



Caton on the Venereal Disease and its Consequences, a New Edition, 

 price 5s. illustrated with Cases : A Practical Treatise on the Prevention 

 and Cure of the Venereal Disease, exhibiting the character,, symptoms, and 

 treatment of the diseases immediately or remotely connected with it ; con- 

 taining Observations on Gleet, Stricture, Mucal Discharges, the use of the 

 Caustic and common Bougie, Cutaneous Eruptions, Imaginary Venereal 

 Diseases, &c. &c. comprising an Elementary Work for Students, and a 

 Guide to the general Reader ; interspersed with select Prescriptions ap. 

 plicable to each division of the Disease. 



ENGRAVINGS. 



Vol. LIX. A Plate illustrative of Mrs. Ibbetson's paper On the 

 Flower-buds of Trees passing through the Wood. — A Plate descriptive 

 of the Instruments employed in determining Altitudes from the Trigono- 

 metrical Station on Rumbles Moor, Yorkshire. — A Plate illustrative of 

 Mr. Ivory's Theory of Parallel Lines inGeometryj Mr. Lee son's Safety 

 Blowpipe Appendages; Mr. Moore's new Apparatus for restoring the 

 Action of the Lungs in Cases of suspended Respiration ; and Dr. Readb's 

 Communication on Refraction. — A Plate illustrative of a curious Electro- 

 magnetic Experiment by Mr. Barlow; and Mrs. Ibbktson's Paper on 

 the Perspiration alleged iq take place ' in Plants. — A Plate illustrative of 

 Mr. Marsh's Paper on a particular Comtruction of M. Ampere's Ro- 

 tating Cylinder. • 



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