TO CORRESPONDENTS. 



The following Communications have been received : 

 Mr. W. Herapath's Contributions to the Knowledge of Chemical Bodies. 

 Meteorological Register kept at Wick in North Britain. 

 Mr. Cercove on a Bullet of a new Construction. 



Mr. Walsh's Paper on the Calculus of Variations ; and Mr. Smith's on the 

 Mean Solar Time, will appear in our next. 



Published by Longman and Co. Paternoster Row, and Taylor, High 

 Holborn, in One Volume Royal 8vo, illustrated with Six Plates. 



AN INQUIRY INTO THE ORIGIN AND INFLUENCE OF 

 GOTHIC ARCHITECTURE, 

 By WILLIAM GUNN, B.D. Rector of Irstead, Norfolk. 

 Notes on the following Subjects are subjoined to the »vork : 

 On the interior Decoration and Arrangement of Churches in ancient 

 Times. 



On the various Kinds of Marble, &c. employed in the Architecture of 

 ancient Rome, and the Time of their Introduction. 



On the Antiquity of the Arch, and particularly of the Cloaca Maxima. 

 Of the Intercourse between Men of Learning and Artists in Rome and 

 Constantinople, from the Reign of Justinian to the First Crusade. 



On the ancient Rituals, with additional Remarks on the interior Ar- 

 rangement of Churches. 



This day is published, No. III. of 



THE ZOOLOGICAL JOURNAL, to be continued Quarterly; 

 conducted 



By THOMAS BELL, Esq., F.L.S. JOHN GEORGE CHILDREN, 

 Esq. F.R. and L.S. JAMES DE CARLE SOWERBY, Esq., F.L.S. 

 and G. B. SOWERBY, F.L.S. 



London : Printed and published by W. Phillips, George Yard, Lom- 

 bard-Street. Sold also by G. B. Sowerby, 156, Regent Street ; to whom 

 communications are to be addressed ; W. and C. Tait, Edinburgh : and 

 A. A. Royer, au Jardin des Plantes, a Paris. 



This Day is published, in Demy 8vo, price 12s. in boards, 



AN ESSAY ON INSTINCT; and its Physical and Moral Re- < 

 lations. By THOMAS HANCOCK, M.D. 



For Reason raise o'er Instinct, as you can ; 



In this 'tis God directs, in that 'tis man. — Pope. 



A man's nature runs either to herbs or weeds : therefore let him seasonably 

 water the one, and destroy the other.— Bacon. 



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

 Lombard street ; sold also by Hatchard and Son, Piccadilly ; and by 

 W. and C. Tait, Edinburgh. 



PHARMACOPOEIA LONDINENSIS, 



Iterum recognita et retractata, 182<t, p. 6. 



"ACIDUM ACETICUM FORTIUS,'' 

 vel 



" Acidum Aceticum e Ligno destillatum." 



PORE CONCENTRATED ACETIC ACID, agreeable to the Sample 

 furnished at the request of the Committee of the Royal College of 

 Physicians, may be had of the Manufacturers, BEAUFOY & CO. South 

 Lambeth, London. 



