1852. ] OF THE ROYAL INSTITUTION. 913 
on the others, to make a good performance; otherwise, by bad equip- 
ment, bad stowage, or ignorant handling, a good plan might result 
in a bad ship; or a good ship, stowed and equipped without know- 
ledge of her form and qualities, might be rendered in practice a sorry 
performer. The elevation of all classes connected with shipping, 
in general intelligence on all the points that approach a ship’s per- 
formance, is the only sure means of advancing our naval position 
among other nations. 
(J. S. RJ 
In the Library were exhibited : — 
Dr. Junod’s Exhausting Apparatus. [Exhibited by Dr. Junod.] 
Casts of Eggs of ASpyornis Maximus, Madagascar ; Birds mounted 
by Mr. A. D. Bartlett. 
Starling and Blackbird, — Imitation (in Leather) of Wood Carving, 
by Mr. Sanders. 
Flexible Chain cast in one Piece by Messrs. Midworth, Newark. 
[Exhibited by Mr. Duer.] ; 
Chinese, Burmese, and Malay Swords,— Chinese Tea-pot — Old 
Dutch carving, ‘‘ Adam and Eve expelled from Paradise.” [Ex- 
hibited by Dr. W. V. Pettigrew, M.R.I.] 
Vases in Parian China, — Marble Cross inlaid, — Stag and Buffalo in 
Cast-iron,— Ortheroceratite and Section—Cast of Helmet from 
one in Silver in the Paris Museum. [Exhibited by Mr. Tennant. ] 
A Daguerrotype Portrait of Sir John Herschell. [Exhibited by Major 
Jervis, M.R.I.] 
Roman Bronze Antiquities. [Exhibited by W. Chaffers, Esq., 
F.S.A.] 
Ibbetson’s Geometric Chuck for producing Bi-cycloid Curves. [Ex- 
hibited by Mr. Perigal.] 
Portrait of Erasmus Wilson, Esq., by Miss Jane C. Bell. 
Mr. C. Varley exhibited various Animalcules, by the Microscope. 
