Cosmical Theory
Subject
Subject Source: Nahste
Found in 2 Collections and/or Records:
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, 6 July 1866
Item
Identifier: Coll-203/1 folio(s) 620-621
Scope and Contents
Letter to Sir Charles Lyell from James Croll concerning his calculations of the thickness of the ice sheets and the extent of the submergence which he claims are based on geological grounds. He also discusses the possible extent of the submergence, the effect on the climate of the Ice sheet and his belief that the grinding down of rock can not be attributed to floating ice but to the extent of time that the rock was covered in ice. He also states that he feels confident that the submergence and...
Dates:
6 July 1866