Part 40

Alternate spellings and mis-spellings in the original have been retained.

Page 26: "analagous" changed to "analogous" (some plant analogous to).

Footnote 96: "Crotallaria" changed to "Crotalaria" (Poisonous Effects of Crotalaria).

Page 52: "Rubidum" changed to "Rubidium" (Rubidium chlorid c. p.).

Page 76: "is" changed to "it" (so that it is not).