http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
illustrativie extracts on his method of instruction
xi pages, 1 ., 90 pages : frontispiece (portrait) ; 22 cm.
with an introductory note by Lane Cooper ...
"First edition, 1917, revised and amplified, April, 1945."
"A list of the pupils of Agassiz": pages 62-67.