Page 324, "appa ently" changed to "apparently" (apparently being tried)
Page 367, "pyschology" changed to "psychology" (of the psychology of this)
Page 375, "eth" changed to "the" (the building of a stick)
Page 384, "once" changed to "one" (In one case Prof. Aggaziz)
Page 420, "intelgence" changed to "intelligence" (exerted upon their intelligence)
Page 457, footnote originally at bottom of page (now on page 470), "retreiver" changed to "retriever" (and retriever of my own)
Page 459, "Broun" changed to "Brown" (writing from Brown university)
Page 476, "on" changed to "an" (spends an hour or two)
Page 483, footnote missing number was added.
Index: when an entry was changed so that its correct spelling placed it out of alphabetical order from its original location, it was relocated.