Croll, James, 1821-1890 (physical geologist and Keeper of Maps and Correspondence, Geological Survey of Scotland)
Person
Found in 7 Collections and/or Records:
Letter to Sir Charles Lyell from James Croll, 1 March 1865
Item
Identifier: Coll-203/1 folio(s) 580-581
Scope and Contents
Letter to Sir Charles Lyell from James Croll regarding the velocity of light and the effects that has on the temperature of the earth during the glacial period. He mentions the theories of Foucault, Le Verrier and Legrange, 1 March 1865.
Dates:
1 March 1865
Letter to Sir Charles Lyell from James Croll, 6 April 1865
Item
Identifier: Coll-203/1 folio(s) 582-583
Scope and Contents
Letter to Sir Charles Lyell from James Croll sending an abstract of a paper containing conclusions further to a paper which was published in August 1863. This paper points out the correspondence between the character of geological climate and those which must result from a change in the earth's orbit, 6 April 1864.
Dates:
6 April 1865
Letter to Sir Charles Lyell from James Croll, 25 December 1865
Item
Identifier: Coll-203/1 folio(s) 588-589
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the eccentricity of the Earth's orbit which he has calculated for a million years past and to come of epochs 5000 years apart. He states that his results are favourable to the Cosmical Theory and will be published in the January edition of the Philosophical Magazine or in the December supplement, 25 December 1865.
Dates:
25 December 1865
Letter to Sir Charles Lyell from James Croll, 12 January 1866
Item
Identifier: Coll-203/1 folio(s) 596-598
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the rigidity of the Earth's crust and the submergence theory. He encloses a copy of his article entitled On The Excentricity of the Earth's Orbit, 12 January 1866.
Dates:
12 January 1866
Letter to Sir Charles Lyell from James Croll, 17 February 1866
Item
Identifier: Coll-203/1 folio(s) 606-607
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning calculations of Charles Moore's which Lyell had sent to him and discussing his own calculations which show how much the centre of gravity of the Earth would have been displaced by the weight of ice-caps, 17 February 1866.
Dates:
17 February 1866
Letter to Sir Charles Lyell from James Croll, 24 April 1866
Item
Identifier: Coll-203/1 folio(s) 613-614
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the temperature of space in relation to the position of the earth and the sun and discussing different methods of calculating the rate at which the temperature decreases and increases depending on the amount of heat that is received from the sun, 24 April 1866.
Dates:
24 April 1866
Letter to Sir Charles Lyell from James Croll, 23 April 1866
Item
Identifier: Coll-203/1 folio(s) 615-618
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the temperature of the earth in both winter and summer and how this temperature is affected by the position of the earth in relation to the sun and snow and ice throughout the world, 23 April 1866.
Dates:
23 April 1866