| RefNo | MS/425/547 |
| Previous numbers | MS/425/536 |
| Level | Item |
| Title | Copy letter, JWL [John William Lubbock], RS [Royal Society], to M Arago |
| Creator | Lubbock; Sir John William; third baronet (1803-1865); British astronomer and banker |
| Recipient | Arago; Dominique François Jean (1786-1853); French mathematician and astronomer |
| Date | 19 May 1835 |
| Description | Lubbock asks to trouble Arago: he would like to receive the observations of Brest tides as soon as possible and he asks Arago if he could have [Macedonio] Melloni acknowledge the receipt of his Rumford Medal money, as Lubbock must show end of year accounts. Lubbock would also like to have the measures which M. [Robert-Aglaé] Cauchoix employs for his two large object glasses. Sir John Herschel recommends a double convex crown and concave-convex flint as employed by [Joseph von] Fraunhofer, although he thinks that Cauchoix uses double convex and double concave, as does [George] Dollond. With two small marginal sketches of lens arrangements. |
| Extent | 1p. [p.233] |
| Format | Manuscript |
| PhysicalDescription | On paper |
| AccessStatus | Open |