Croll, James, 1821-1890 (physical geologist and Keeper of Maps and Correspondence, Geological Survey of Scotland)
Person
Found in 6 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, 8 April 1865
Item
Identifier: Coll-203/1 folio(s) 584
Scope and Contents
Letter to Sir Charles Lyell from James Croll discussing the calculations and speculation concerning the temperature of space which ranges from -315 degrees farenheit to -224 degrees farenheit, 8 April 1865.
Dates:
8 April 1865
Letter to Sir Charles Lyell from James Croll, 6 November 1865
Item
Identifier: Coll-203/1 folio(s) 586-587
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the temperature of Iceland in the glacial epoch and at the time this letter was written and how it is affected by season, position of the island and the presence of the Gulf Stream, 6 November 1865.
Dates:
6 November 1865
Letter to Sir Charles Lyell from James Croll, 17 April 1866
Item
Identifier: Coll-203/1 folio(s) 611-612
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning the quantity of heat received from the sun between two equinoxes, the effect of Perihelion and Aphelion on the length and strength of summers and winters and the effect of the formation of ice and snow on the levels of heat given off from the earth, 17 April 1866.
Dates:
17 April 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