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From C. H. Blackley 7 July 1873
Summary
Thanks for copy of Wyman’s book.
His own recent researches [on pollen] at high altitudes were inspired by CD’s account in Journal of researches of distances dust may travel.
| Author: | Charles Harrison Blackley |
| Addressee: | Charles Robert Darwin |
| Date: | 7 July 1873 |
| Classmark: | DAR 160: 192 |
| Letter no: | DCP-LETT-8967 |
From C. H. Blackley 11 July 1873
Summary
Thanks for suggestion to try effect of dry heat on pollen and for other new information on pollen. Will begin new experiments soon, hoping to cure hay-fever.
| Author: | Charles Harrison Blackley |
| Addressee: | Charles Robert Darwin |
| Date: | 11 July 1873 |
| Classmark: | DAR 160: 193 |
| Letter no: | DCP-LETT-8974 |
