On the physical geography, geology, and commercial resources of Lake Superior / J.J. Bigsby.
- John Jeremiah Bigsby
- Date:
- [1852]
Licence: Public Domain Mark
Credit: On the physical geography, geology, and commercial resources of Lake Superior / J.J. Bigsby. Source: Wellcome Collection.
Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.
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No text description is available for this image![[for the use of members.] JKoyal Jngtttutton of caveat 'Britain:* 1852. WEEKLY EVENING MEETING Friday, March 26. Sir John P. Boileau, Bart., F.R.S., Vice-President, in the Chair. Professor E. Cowper, On the Principles of the Construction and Security of Locks. Professor Cowper, after pointing out the peculiarities of construc- tion in the more celebrated Locks of ancient and modern times, explained the mode by which Mr. Hobbs had succeeded in picking Bramah’s, and other locks, and suggested additional means of security against such a procedure. His remarks were elucidated by numerous large models and diagrams. Long continued illness has unfortunately prevented Professor Cowper from supplying an abstract of his discourse. In the Library were Exhibited : — Wooden Lock and Key made by the negroes of Jamaica, and another of a different form — Lock of wicket of the Castle of Pown- ghur — Key found in the thatch of an old house, St. Andrew’s.— Profile of General Wolfe sketched in pencil by Harvey Smith, one of his Aide-de-Camps, a short time before his death at Quebec, — from the United Service Institution. Wire Models to illustrate the Cleavage of the Diamond, &c. — and Large Pieces of Topaz Rock and Crystal of Beryl. [Exhibited by Mr. Tennant.] Portrait on copper of Maurice of Nassau, probably by Mirevelt. [Exhibited by John Hicks, Esq. M.R.I.] Bust of Thomas Carlyle, Esq. by H. Weigall, Esq. Specimens of Printing in Colours by Blocks, by Messrs. C. B. and G. Leighton. Design of Galloway’s Tubular Boiler as adapted to Steam-boat purposes, by Mr. R. Armstrong. A Set of Talbotype Apparatus ; the Camera with improved Sliding Front—Talbotype, Negative and Positive, and various Por- traits, by Mr. Henneman. Boxes, and other Articles manufactured from Muslin and Cotton Mache, by Mr. G. FIart. Paintings on China. [Exhibited by W. T. Copeland, Esq.] No. 11. N](https://iiif.wellcomecollection.org/image/b22377086_0011.jp2/full/800%2C/0/default.jpg)