Summary

Comparison of skulls of Ichthyosaurus and Cetacea.

Summary

Forwards two specimens of beans found on north coast of Norway.

Summary

Cancelled: same as 1672.

Summary

Gives instances of sexual differences in the number of tarsi within species of Coleoptera and also variation in the number of tarsi between related species.

Summary

Discusses his account.

Summary

Concerning specimens he wants collected in the Azores.

Summary

On the ova of the salmon in relation to the distribution of species.

Summary

CD describes his experiments on the effects on germination of the immersion of seeds in sea-water. Hopes to throw light on the distribution of plants. Asks readers of Gardeners’ Chronicle to inform him whether such experiments have already been tried and what class or species of seeds they suppose would be particularly liable to be killed by sea-water.

Summary

Invites JSH to dine at CD’s brother’s house in London.

Summary

Cancelled: part of 1757. Has examined a specimen of [of what he had previously described as the ovaria of Lepadidae, see Living Cirripedia 1: 57-8]. Could not find cells resembling ovigerms. When THH has seen the organ in different states, and can say positively that in none could ovigerms be in formation, CD will 'give up the ghost handsomely and entirely'.

Summary

Corrects a misprint in his letter [1783].

Adds that his experiments show that one cannot infer from the vitality of seeds under dry conditions that they will be preserved in different conditions. Cites the poor ability of Leguminosae to withstand immersion.

Summary

Returns CD’s list of Azores plants with information on the distribution of the species added. Encloses a list, extracted from CD’s list, of those plants common to Europe and the Azores that were probably not introduced by man.

Summary

Reports that he sees the oxlip, cowslip, and primrose as really distinct species; hybrids are formed between any two.

Summary

Acknowledges a list [of plants?].

Looks forward to new edition [of British plants growing wild in the parish of Hitcham, Suffolk, 2d ed. (1855)].

JSH should not trouble about Anacharis until he is less busy. Will send cirripedes.

Summary

Artificiality of orders and genera in botany.

Difficulties in numerical analysis of close species in large and small genera.

HCW has "pretty strong bias towards the view that species are not immutably distinct".

Summary

Sends a catalogue of plants [missing] with the close species marked.

Summary

Will be obliged if any reader can provide eggs of lizard Lacerta agilis. Wants to ascertain whether they float in sea-water. Offers reward of a few shillings to boys for collecting.

Summary

Would be useless to insert CD’s name [on masthead of Entomologists’ Annual] since he does not work on insects.

Summary

Has received the seeds safely.

Summary

Gives names of German dealers who provide seed of superior quality.