46 



Presents. 



[Mar. 10, 



the cross-section forming- the outer part of the diagram. A fuller 

 description, with explanations of reasons for the various statements 

 made, would extend beyond the limits suitable for this abstract. 



In the paper the author enters into some considerations as to the 

 reasons for or against the views put forward by various persons. 



The paper concludes with a sketch of a contemplated experimental 

 apparatus for illustrating the supposed motions in the earth's atmo- 

 sphere by motions proposed to be brought into play in water placed 

 in a horizontal circular tray, kept revolving round a vertical axis 

 through its centre, and with heat applied round its circumference at 

 bottom, and cold applied, or cooling allowed to proceed, in and around 

 the central part at or near the surface. 



Presents, March 10, 1892. 



Transactions. 



Berlin : — Gesellschaft fur Erdkunde. Yerhandlungen. Bd. XIX. 

 No. 1. 8vo. Berlin 1892. The Society. 



Konigl. Preuss. Akademie der Wissenschaf'ten. Sitzungs- 

 berichte. 1891. Nos. 41-53. 8vo. Berlin 1891. 



The Academy. 



Cambridge, Mass. : — Harvard College. Annual Reports of the 

 President and Treasurer. 1890-91. 8vo. Cambridge 1892. 



The University. 



Coimbra : — Universidade. Annuario. 1891-92. 8vo. Coimbra 

 1892. The University. 



Edinburgh : — Botanical Society. Transactions and Proceedings. 

 Yol. XIX. Pages 191-23L 8vo. Edinburgh 1891. 



The Society. 



Geneva : — Societe de Physique et d'Histoire Naturelle. Memoires. 



Volume Supplementaire. 4to. Geneve 1891. The Society. 

 London : — British Astronomical Association. Journal. Yol. II. 

 No. 3. 8vo. London 1892. The Association. 



Institute of Brewing. Transactions. Yol. Y. No. 3. 8vo. 



London 1892. The Institute. 



Institution of Mechanical Engineers. Proceedings. 1891. No. 5. 



8vo. London. The Institution. 



Odontological Society of Great Britain. Transactions. Yol. 



XXIY. No. 4. 8vo. London 1892. The Society. 



Photographic Society of Great Britain. Journal and Trans- 

 actions. Yol. XYI. No. 5. 8vo. London 1892. 



The Society. 



Royal College of Physicians. List of Fellows. 8vo. London 

 1892. The College. 



