TO ADVERTISERS. 



Advertisements are inserted on the Cover of The Naturalist, on the following very low 

 Terms : — J of a page, 5s. — ^ of a page, 8s. 6d. — J of a page, 16s. — Whole page, 30s. 

 Bills stitched in, 40s. 



Advertisements to he sent not later than the 15th of the Month. 



R. DAMON, OF Weymouth, Dorset, • 



vSupplies Collections of BRITISH SHELLS, fine specimens, correctly named, 100 species 

 for 52s. 6d. ; 200, 6 guineas ; 300, 12 guineas. An Elementary Collection of 50 species 

 (100 specimens) for 15s. Specimens sent by post. Improved Dredges, for collecting Shells, 

 Zoophytes, &c. Neat Labels for British Shells. List of British Shells, Od. Collections, 

 illustrating 100 Genera of recent Shells, 30s. ; Ditto, of 500, 1,000, 2,000 species, equally 

 nsasonable. Labels for recent Shells. 



Fossils. — Saurian Remains, Pentacrinite, Ophiura, Fish, Shells, &c., characteristic of 

 Blue Lias and other Oolite Strata. Elementary Collections of Fossils, to assist in the 

 study of Geology, £1. and upwards. Labels for Fossil Shells. 



8vo., Price 2s. 



A THEORY as to the PROXIMATE CAUSE of INSANITY, 



together with 

 SOME OBSERVATIONS ON THE REMOTE CAUSES OF THE DISEASE; 



TO WHICH IS appended, 



A SHORT ESSAY ON SPINAL IRRITATION: 



BY BEVERLEY R. MORRIS, A.B., M.D., 



OF TRINITY COLLEGE, DUBLIN: 



Medical Visitor in Lunacy to the Private Asylums in the North and West Ridings of 

 Yorkshire, and in the City of York. 



Formerly Physician to the York Dispensary. 



ALSO, BY THE SAME AUTHOR, 8vo., Price 6d. 



OBSERVATIONS ON THE CONSTRUCTION OF HOSPITALS FOR THE 



INSANE. 



LONDON :— Messrs. GROOMBRIDGE, PATERNOSTER-ROW. 



