Darwin Online Manuscript Catalogue
| Identifier: | Whipple-Wh.3788.3 |
| Date: | Undated |
| Name: | Darwin Charles Robert |
| Attributed title: | note on the use of the micrometer (1) "Microtome When 2 inch object glass is used pull out tube 2 inches & use either 1/100 or 1/200 of inch micrometer. It makes no difference which of its 2 eye-pieces are used If 2/3 inch object glass is used pull out tube 3 1/2 / 10' of an inch.-" |
| Document type: | Note |