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CONTENTS 



OP THB 



QUARTERLY JOURNAL, 



No. XXXVIII. y 



A»T. PAGR 



I. On a peculiar Vegetable Product possessing^ the principal Pro- 

 perties of Tallow. By Benjamin Babington, M.D. . 177 



IJ. Outlines of Geology ; being the Substance of a Course of 

 licctures on the Subject delivered in the Amphitheatre of 

 the Royal Institution of Great Britain. By William Thomas 

 Brande, F.R.S., Professor of Chemistry in the Royal 

 Institution, &c. IS4 



III. Description of Psittacus Fieldii, a new species of Parrot from 

 Australia. By William Swainson, F.R. & L.S. . . 198 



IV. On the Origin, Materials, Composition, and Analogies of 

 Rocks. By John Mac Culloch, M.D., F.R.S.E., &c. . 200 



V. Supplementary Remarks to a former Paper on Light and Heat. 



By Baden Powell, M.A., F.R.S. 213 



VI. Observations on the State of Education in Ireland. By George 

 Harvey, Esq., F.R.S.L. & E. .217 



VII. An Account of the Eruption of Mount Etna, of the 27th May, 

 1819 227 



VIII. On the Theory of the Wedge 234 



IX. On the Transportation of Fish from Salt to Fresh Water. By 



By J. Mac Culloch, M.D., F.R.S.E 237 



X. On the Impurity of the Pulverised Emetic Tartar of the Shops 243 



XI. Some Account of the late M. Guinand, Optician of Brenets, 



in the Canton of Neufchatel, in Switzerland .... 244 



XII. Theorems in the Doctrine of Annuities . . • . . 258 



XIII. PRorEBMNGs pp THE Royal Society . . . . 2dl 



