i. 26 December 1843 - Penzance - Fresh water algae. (W.P. has note).
ii. 17 October 1844 - Illfracombe - Endlicher's work. Mr. Casey and packet from Montague.
iii. 30 October 1844 - Penzance - Publications.
iv. May 1852 - Penzance - Price of Algae. Another fasciculus of Algae not ready before next winter. (W.P. has calculation).
v. 25 June 1853 - Plymouth - Sends best wishes for trip to North Wales. "Will send some copies as soon as I have any ready.