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Naturalist
- Exchanging insect lists with Bates and keeping a journal
- Wallace's advice to Bates on writing a book
- Wallace on animal distribution and admiration of Darwin
- Wallace on wild flowers in Java and England
- Wallace on biogeography
- Portrait of Wallace
- Comments on the distribution of birds in Celebes
- Flowers at The Dell
- Proof illustration of the animals of New Guinea
- Proof illustration of the birds of the Malay forest
- Proof illustration of the animals of Borneo
- Proof illustration of the birds of the Upper Amazon
- Proof illustration of the animals of a Canadian forest
- Proof illustration of the animals of Madagascar
- Darwin's notes on Wallace's Island Life book
- Wallace explains flower anatomy
- Wallace's Lowell Institute lecture on continental islands
- Report on Darwinism lectures
- Response to Wallace's lecture on colours of animals
- List of Wallace's lectures in the USA
- Information on astronomy and the death of Bates
- Notes on glacial lakes
- List of payments for lectures
- Attending the Cambridge University Natural Science Club
- Naming a spider Friula wallacii
- Wallace in his garden
- Photographic proof print of a redwood tree
- Annotated proof print of an orang-utan
- Annotated proof print of a gibbon
- Annotated proof print of a lemur
- Wallace donates his Amazonian fish drawings to the British Museum
- Science in 1907 manuscript
- Science in 1907 newspaper article
- Reply from Tring Zoological Museum about bird species
- Wallace and the Croydon Natural History Society
- Social issues
- Spiritualism
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Notes on glacial lakes
Full transcription
Glacial Lake Origin
Test evidence.
If lakes have been formed by unequal subsidence & elevation of river valleys, then whenever lateral ravines debouched into the old river these ravines sh.[oul]d remain in the lake-bottom, - unless all filled up with sediment. Also the lake-bottom itself should contain the old river bed sometimes flowing between high banks or rocky channels. All indications both of the river channel & of all the channels of the lateral streams could hardly have been obliterated by sediment. If ground out by ice, however there should be no such channels but a rounded contour of lake-bottom its variations dependent on varying grinding force of the glacier, & on varying hardness of rock.
Test evidence.
If lakes have been formed by unequal subsidence & elevation of river valleys, then whenever lateral ravines debouched into the old river these ravines sh.[oul]d remain in the lake-bottom, - unless all filled up with sediment. Also the lake-bottom itself should contain the old river bed sometimes flowing between high banks or rocky channels. All indications both of the river channel & of all the channels of the lateral streams could hardly have been obliterated by sediment. If ground out by ice, however there should be no such channels but a rounded contour of lake-bottom its variations dependent on varying grinding force of the glacier, & on varying hardness of rock.
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Wallace Letters Online
View high resolution scans and transcripts of Alfred Russel Wallace's correspondence, including all surviving letters between him and Charles Darwin.