"The Descent of Man" Volume 1 contains 444 pages and is a file of 12 MB.
"The Descent of Man" Volume 2 contains 452 pages and is a file of 13 MB.
87) Henry Thomas Buckle's
"History of Civilization in England"
This is the 1913 edition containing 940 pages in 3 volumes.
Volume 1 contains 407 pages and is a file of 16 MB.
Volume 2 contains 246 pages and is a file of 9 MB.
Volume 3 contains 287 pages and is a file of 11 MB.
88) Arthur Shopenhauer's "Works"
This is the 1932 edition containing 331 pages and is a file of 15 MB.
89) Frederick Nietzsche's "Thus Spake Zarathustra"
This is the 1917 edition containing 408 pages and is a file of 21 MB.
90) Charles and Mary Beard's
"Rise of the American Civilization"
This is the 1927 edition in 2 volumes.
"The Agricultural Age" Volume 1 contains 847 pages and is a file of 53 MB.
"The Industrial Age" Volume 2 is not available online as an eBook at this time.
91) Edgar Allan Poe's "Poems and Stories"
I have selected "The Complete Poems" and Volumes 2-10 of the
1902 edition of "The Complete Works."
"The Complete Poems" is the 1919 edition, contains 392 pages and is 13 MB.
"The Complete Works Volume 2" contains 382 pages and is a file of 26 MB.
"The Complete Works Volume 3" contains 382 pages and is a file of 33 MB.
"The Complete Works Volume 4" contains 382 pages and is a file of 26 MB.
"The Complete Works Volume 5" contains 377 pages and is a file of 47 MB.
"The Complete Works Volume 6" contains 378 pages and is a file of 55 MB.
"The Complete Works Volume 7" contains 403 pages and is a file of 34 MB.
"The Complete Works Volume 8" contains 442 pages and is a file of 38 MB.
"The Complete Works Volume 9" contains 454 pages and is a file of 7 MB.
"The Complete Works Volume 10" contains 404 pages and is a file of 38 MB.
92) Ralph Waldo Emerson's "Essays"
I have found four volumes of Emerson's Essays, the 4 volumes contain 1,436 pages.
"English Traits, Representative Men and other Essays" is the 1913 Everyman Library edition and contains 406 pages and is a file of 31 MB.
"The First and Second Series of Essays" is the 1910 Everyman Library edition and contains 376 pages and is a file of 19 MB.
"Conduct of Life: Nature and other Essays" is the 1908 Everyman Library edition and contains 328 pages and is a file of 17 MB.
"Society and Solitude and other Essays" is the 1922 Everyman Library edition and contains 326 pages and is a file of 17 MB.
93) Henry David Thoreau's "Walden"
This is the 1910 edition containing 498 pages and is a file of 30 MB.
94) Walt Whitman's "Leaves of Grass"
This is the 1902 edition containing 918 pages which is a file of 13 MB.
95) Abraham Lincoln's "Letters and Speeches"
This is the 1919 Everyman Library edition containing 270 pages and is 14 MB.
96) Romain Rolland's "Jean Christophe"
I have found one volume that includes all of Jean Christophe. It is a 1913 edition containing 1600 pages and is a file of 101 MB.
97) Havelock Ellis'
"Studies in the Psychology of Sex"
These are the 4 volumes recommended by Mr Durant, containing 1,860 pages.
"Studies in the Psychology of Sex" Volume 1 is the 1920 edition, contains 381 pages and is a file of 11 MB.
"Studies in the Psychology of Sex" Volume 2 is the 1921 edition containing 419 pages and is a file of 16 MB.
"Studies in the Psychology of Sex" Volume 3 is the 1921 edition containing 375 pages and is a file of 13 MB.
"Studies in the Psychology of Sex" Volume 6 is the 1910 edition containing 685 pages and is a file of MB.
98) Henry Adams' "The Education of Henry Adams"
This is the 1907 edition containing 476 pages which is a file of 32 MB.
99) Henri Bergson's "Creative Evolution"
This is the 1944 Everyman Library edition containing 488 pages which is 16 MB.
100) Oswald Spenler's "The Decline of the West"
This is the 1927 edition in 2 volumes.
Volume 1 "Form and Actuality" is the 1918 edition of 492 pages which is a file of 55 MB.
Volume 2 "Perspectives on World History" is the 1922 edition of 564 pages which is a file of 52 MB.