Series 1: Biographical and personal materials
Obituaries of Joseph R. Slevin 1957
In Memoriam - Thomas Edwards Slevin, The Magnetic Pole, Geographical Society of the Pacific: Constitution
Photographs, Herpetologists League certificate, newspaper clippings, obituaries
CAS Constitution and By-laws 1915 and 1925
Passports 1855-1952
Slevin's CAS membership cards
Vaccination cards
Slevin's journal containing research notes
Miscellaneous personal documents including maps, passport instructions, and various publications undated
Scrapbook of newspaper clippings
Framed portraits of relatives and ancestors
Series 2: Correspondence
Al Leviton replies to correspondence addressed to Slevin after Slevin's death
Correspondence regarding the search for Cowan's grave, St. James Island, and other Galapagos research
Correspondence - Request for information on the grave of Lt. Cowan
Photos of the Officers of the Hassler, letter by J. Henry Blake, and map tracing route of the Heller
Correspondence regarding search for ships to the Galapagos 1940's
Correspondence regarding search for ships to the Galapagos 1950's
Correspondence and research into the "Beagle" and other captains and vessels
Correspondence - Search for information on Fray Tomas de Berlanga
Series 3: Manuscripts and publications (non Galapagos)
Manuscript, "Las Islas Encantadas"
Manuscript, "Extracts From a Report of the Sea" (in Slevin's History)
Mounted photos taken in Bogurte, Panama
Instructions of the Revillagigedo Islands Expedition of the California Academy of Sciences 1925
Assorted papers including manuscripts, correspondence and trip reports 1925
Assorted manuscripts by Slevin undated
Newspaper clippings and publications by Slevin
Manuscript of Slevin's "The Academy in the Field"
Academy publications, correspondence and information regarding snakes
Graphic time table, Outing Bureau trip report, and publications regarding the Miwok tribe
Publications and works by Slevin and CAS Newsletters referencing Slevin
Series 4: Galapagos papers and research
5x7 photographs of Hancock's 1927 Galapagos Expedition onboard the Oaxaca 1927
Galapagos photographs, assorted photographers 1905-1906
D.H. Bates letter and photographs of the Galapagos 1905-1906
Rear Admiral Francisco Benito Perera, "Historia del Archipielago de Las Islas Galapagos"
Map of 1921 California Academy of Sciences Gulf of California expedition route
Slevin's Galapagos history notes, bibliography. Dimensions,services and log excerpts of the H.M.S. Beagle
Photos of Galapagos Islands, and Berlanga, Spain
Galapagos Research notes
Photos of Galapagos charts and maps
Galapagos histories and memoirs written by various authors
Manuscripts for The Galapagos Islands / A History of their Exploration
The Galapagos Islands / A History of their Exploration 1959
Galapagos histories and memoirs written by various authors
Research and manuscript for the "The Galapagos Islands / A History of Their Exploration" undated
Correspondence, research notes and bibliography for "The Galapagos / A History of Their Exploration" undated
Draft of "The Galapagos Islands / A History of Their Exploration" bibliography undated
Correspondence and research materials for "The Galapagos / A History of Their Exploration" undated
Various reference materials regarding the Galapagos Islands, bibliographic index cards and photographs.
Manuscripts and articles by Slevin
Photographs - Botanical negatives/photos and indications of landings carved in rock, Darwin and the Beagle
Photographs - Galapagos early landings and charts and graphs
Copy of the Captain's log of the Beagle
Portfolio of photographs from the Hancock expedition
20 pages of the diary of Fletus, of the USS ESSEX, and Slevin correspondence
Photographs from Hancock's expedition
Publications regarding the Galapagos Islands
Photograph album of mostly Galapagos photos and few Sierra photos
Photos and captions for "The Galapagos / A History of Their Exploration"
Photos and captions for "The Galapagos / A History of Their Exploration"
Photos of Lieutenant Gamble and Galapagos maps
Two woodcuts from Slevin
Drawing of Columbine ship sails
Navigation log of Frigate Eugenie
Photo of the Corvette Decres of the French Navy
Copies of Ambrose Cowley's drawings and maps of Galapagos Islands from 1684 Galapagos expedition
Copies of Ambrose Cowley's diary pages from 1684 Galapagos expedition
Copies of Edward Davies's diary from 1684 Galapagos expedition
Charts by G.W.P. Edwardes from H.M.S. Daphne Galapagos expedition.
Copies of early maps of South America and Galapagos Islands
Copies of H.M.S. Brisk plans
Narborough Island map and negative photostat prints
1905-1906 Galapagos Islands expedition field notes. 1905-1906
1905-1906 Galapagos expedition collection catalog and 1909 Klamath Falls collection catalog. 1905-1909
Series 5: Miscellaneous papers, magazine clippings, and notes
3x5 cataloging cards
Miscellaneous notes
Newspaper clippings
Glassware price lists, photographs and other miscellaneous documents
Envelope of newspaper clippings and photos
Film of eclipse
Newspaper clippings, photographs, and correspondence