The frequency with which I think of all the happy hours I have spent at Shrewsbury and Cambridge is rather ominous--I trust everything to time and fate and will feel my way as I go on.
November 24th .-- We have been at Buenos Ayres for a week; it is a fine large city, but such a country, everything is mud, you can go nowhere, you can do nothing for mud.

In the city I obtained much information about the banks of the Uruguay--I hear of limestone with shells, and beds of shells in every direction.

I hope when we winter in the Plata to have a most interesting geological excursion into that country: I purchased fragments (Nos.

837-8) of some enormous bones, which I was assured belonged to the former giants!! I also procured some seeds--I do not know whether they are worth your accepting; if you think so I will get some more.

They are in the box.