From Edward Cresy 10 November 1860
Summary
Explains discrepancies in weights and measures caused by changes since 1836 in apothecaries’ measures.
EC has found that a discrepancy in A. W. von Hofmann’s experiments with iodine solutions resulted from an error in Hofmann’s use of decimals.
Reports S. P. Woodward’s opinion of the Origin: "a very sad book, it unsettles all one’s religious principles and the worst of it is so much of it is true".
| Author: | Edward Cresy, Jr |
| Addressee: | Charles Robert Darwin |
| Date: | 10 Nov 1860 |
| Classmark: | DAR 58.1: 7, 9 |
| Letter no: | DCP-LETT-2980 |
Matches: 3 hits
- … I find 10 milligrammes per 1000 grammes = 1 kilogramme = 1 litre—gives .01 per gramme and …
- … contained 10 milligrammes of iodine in 1 kilogramme of water. i.e. .01 milligramme per …
- … 10 milligrammes of iodine in 1000 grammes of water—that is one to one million— the D r then took one gramme of the solution containing therefore .01 …
Document type
| letter | (1) |
Author
Addressee
| Darwin, C. R. | (1) |
Correspondent
| Cresy, Edward, Jr | (1) |
| Darwin, C. R. | (1) |
