=Amateurs' Supplies.=--Under this heading short descriptions of new tools, apparatus and materials are inserted, thus keeping the reader posted up in the latest improvements. =A System of Queries and Replies=, by which all readers of the journal can obtain information and advice on mechanical or electrical subjects. =Original Working Drawings= and high-class illustrations are a regular feature of the journal. =Prize Competitions= open to all readers, are announced from time to time, on all subjects. =Model Yachting=, Notes, New Books, &c., &c. All subscriptions should be sent to SPON & CHAMBERLAIN, Sole American Agents. 123-125 Liberty Street, New York, U.S.A. * * * * * Transcriber's Notes: The original spelling and minor inconsistencies in the spelling and formatting have been maintained. Inconsistent hyphenation is as in the original if not marked as a misprint. Text in italics has been marked with underscores (_text_) and bold text with egual signs (=text=) Inconsistent smallcap mark-up of the word Fig. in captions has been harmonized to FIG. Missing punctuation in the advertisement at the end of the book has been added. Table A has been re-arranged to fit the line size. Table II and B have been split into two parts. The table below lists all corrections applied to the original text. p. ix: Gay-Lassacs -> Lussac's p. x: for molasses. Transportion -> Transportation p. xii: 30, 31, -> 30, 31 p. 8: Mashes, and Fermentation -> Fermentation. p. 11: Company, of Cincinnati -> Cincinnati, p. 11: illustrated in Fig -> Fig. p. 15: stirrer arms B -> _B_ p. 16: driving shaft F -> _F_ p. 22: This is know -> known p. 26: of the yeast stops -> stops. p. 40: pipes G G G -> _G G G_ p. 40: in the worm, -> worm. p. 57: as the chamber B -> _B_ p. 64: Fig. 22.--Diagramatie -> Diagramatic p. 68: depriving it of its aclohol -> alcohol p. 72: Gauge Glass for Regulatar -> Regulator p. 73: runnings or ".feints." -> "feints." p. 73: Fig. 29 -> 29. p. 80: the column _A_ -> _A_. p. 94: more highly varporized -> vaporized p. 107: being kept at 65∞F -> 65∞ F p. 117: saccharification takes place -> place. p. 138: steam is admitted though -> through p. 145: is required per arce -> acre p. 149: which is varied accroding -> according p. 158: FIF. -> FIG. p. 185: starch a blue color, -> color. p. 186: may contain numerious -> numerous p. 186: processes are largely empirical -> empirical. p. 191: in the still in Fig. 8 -> 8. p. 192: money for their proprieters -> proprietors p. 195: constructed, however, to pervent -> prevent p. 195: After the chief feremnting -> fermenting p. 198: rectifying columns, refrigerators -> refrigerators, p. 198: FIG. 56 -> 55 p. 206: FIG 59. -> FIG. 59. p. 218: 100 gallons -> gallons. p. 218: Ethyl Alcohol--100 gallons. -> Ethyl Alcohol 100 gallons. p.