Cannot conceive that anything written for the Linnean Society by [Joseph] Sabine can require his revision. Had hoped to be in London for 15 April but this will now be 1 May in order for him to finish second volume of his "[English] Flora" and to correct sheets of the first. Received "melancholy letter" from Bishop of Carlisle [Samuel Goodenough]; hopes he is better, "great pressure of his work" prevents him from writing to his friends.