IV CONTENTS. 



5. Notice of further Discoveries at Burdiehouse. By Dr 



HiBBERT, - - - - Page 196 



6. On the Investigation of Magnetic Intensity, by the Os- 



cillations of a Horizontal Needle. By William 

 Snow Harris, Esq. F. R. S. - - - ib. 



7. Experiments on Magnetic Intensity made at Liver- 



pool and Manchester. By Dr Traill, - - 197 



8. Description and Analysis of a Mineral from Faroe, not 



before examined. By Arthur Connell, Esq. 198 



XVIII. Premiums oflfered by the Wernerian Natural History 



Society, ----- 199 



XIX. Discovery of the Bones of the Iguanodon in a quarry 

 of Kentish Rag (a limestone belonging to the 

 lower greensand formation), near Maidstone, Kent. 

 Communicated by Gideon Mantell, Esq.F.R.S. 

 &c. - - - - - - 200 



XX. Earthquake in South America, - - 202 



XXI. New Publications. 



1. ^lathematical and Astronomical Tables for the Use of Stu- 



dents in Mathematics, Practical Astronomers, Surveyors, • 

 Engineers, and Navigators. Second Edition, greatly en- 

 larged and improved. By William Galbraith, A. M., 

 Teacher of Mathematics, Edinburgh. - - 203 



2. Illustrations of the Botany and other branches of the Natural 



History of the Himalayan Mountains, and of the Flora of 

 Cashmere. By J. F. Royle, Esq. F. L. S. F. G. S. &c. 

 No. 2. Folio. - - - - 204 



3. The Natural History of Animalcules ; containing Descrip- 



tions of all the known Species of Infusoria, with instruc- 

 tions for procuring and viewing them, &c. Illustrated by 

 upwards of 300 Magnified Figures on steel. By Andrew. 

 Pritchard, Esq. ----- ib. 



