Letters from Moore, John Carrick to Charles Lyell, 4 January 1839 - 1874

Large amount of letters, comprising 12 folders, from James Croll on Climate, Obliquity, Excentricity and Ocean Tides. Mentions R. Mallet on earthquakes. One folder has been summarised:
1) Graptolite in Galloway
2) Dowalton Loch, Wigtownshire
3) Notes on Croll's 2nd paper
4) Corrections of Lyell's notes for ms on climate
5) Croll's paper/ defectiveness of glacial records
6) Croll's paper
7) Against astronomical effects
8) Queries on Croll's paper
9) General notes on astronomical effects
10) Obliquity of Ecliptic, variation of
11) Ramsay's glacial theory opinions of Sir H James
12) His letter and conclusions