Darwin Online Manuscript Catalogue
| Identifier: | Carroll5 |
| Date: | [1852] |
| Name: | Darwin Charles Robert |
| Description: | By measuring circumference & length of chain hauled up w'[dth] = 15.94 If 16 men can pull 120lb at desired [rate?], how many men can pull 50lb. 120lb : 50lb :: 16 men : X Whatever X may be (as there will be only one man) his force must be [illeg] as ratio of 1 to X [illeg] of as now 1:16 |
| Document type: | Note |