The arithmetic doesn't work out right for the third house of the Pennsylvania grower on page 17 of part 2. Perhaps it produced 28,000 pounds rather than 2,800. However, I left it as it was. Removed duplicate word "the" on page 20 of part 2: "add to the manure." Changed "surfare" to "surface" on page 20 of part 2: "surface be too dry." Changed "POLYPOROUS" to "POLYPORUS" on page 24 of part 2. Changed "deletereous" to "deleterious" on page 3 of part 3: "classed as deleterious." Changed "yellew" to "yellow" on page 4 of part 3: "never yellow." Changed "flexuous" to "flexuose" on page 4 of part 3: "thin, flexuose." The Analytic Table starting on Page 6 of part 3 was changed to use numeric codes to identify the branches in the tree rather than the special characters, for clarity and elimination of non-Latin-1 characters. Changed "Psilosybe" to "Psilocybe" in the table on page 7 of part 3. Changed "fibres" to "fibers" on page 8 of part 3: "with minute fibers." Changed "Rhodosporhii" to "Rhodosporii" on page 9 of part 3: "section Rhodosporii." "Pleurotos" appeared on pages 9 and 16 of part 3 and page 3 of part 5; they were all changed to "Pleurotus" for consistency. 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 "Gloeoporus" and "Gloeporus" 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 Saprolegniaceae, or "fish moulds;".' Changed "Entomothoraceae" to "Entomophthoraceae" on page 20 of part 3. Changed "Uutersuch." to "Untersuch." on page 21 of part 3: "Bot. Untersuch." Changed "Mongraphie" to "Monographie" on page 21 of part 3: "Monographie des Saprolegniees." Changed "spois" to "spores" on page 23 of part 3, in the entry for tetraspore. Changed "perethecia" to "perithecia" twice on page 23 of part 3: "enclosed in perithecia" and "fungi without perithecia." Changed "Hyphomecetea" to "Hyphomyceteae" on page 23 of part 3: "such as the Hyphomyceteae." Changed "rotton" to "rotten" on page 4 of part 4: "rotten wood or sticks." Changed "Puff Ball" to "Puff-Ball" in caption to Plate G.