Changed "epyphytal" to "epiphytal" on page 13 of part 3: "epiphytal, often stemless."
Changed "Mushroooms" to "Mushrooms" on page 14 of part 3: "Mushrooms with Bacon."
Changed "importatnt" to "important" on page 15 of part 3: "an important part."
Changed "Hymenomycetefs" to "Hymenomycetes" on page 16 of part 3: "the genera of Hymenomycetes."
Both "Glœoporus" and "Glœporus" appear. I left both spellings, since I couldn't determine the author's intention.
Changed "Basidyomycetes" to "Basidiomycetes" on page 18 of part 3: "Ascomycetes and Basidiomycetes."
Changed "myceluim" to "mycelium" on page 18 of part 3: "directly on the mycelium."
Changed "Dacyromycetes" to "Dacryomycetes" on page 19 of part 3: "(1) Dacryomycetes."
Some text was dropped on page 19 of part 3. I inserted an ellipsis as a place-holder: "without asci, ... sporules or stylospores."
Moved semi-colon inside quote three times on page 20 of part 3, for grammatical consistency: 'or "rotting moulds;" the Cystopi, or "white rusts;" the Saprolegniaceæ, or "fish moulds;".'