Congratulations on JDH’s safe return.

Henslow has sent CD’s S. American plants to JDH for examination.

Thanks for use of CD’s collection.

Comments and queries on the botany of the Southern Hemisphere.

Looks forward to seeing CD’s Galapagos plants.

Henslow has sent him CD’s Galapagos plants along with Macrae’s. JDH impressed by the island endemism, which "overturns all our preconceived notions" on centres of radiation. Describes the extent, and the sharp demarcation at longitude 60° W, of the American and European Northern Hemisphere floras. CD’s plants among those he is using to do Antarctic flora. Drimys winteri shows a graded series of states down the length of the South American continent.

Thanks JDH for short sketch of botanical geography of Southern Hemisphere. Comments on his own S. American collections and observations; notes other Galapagos collections.