Transcriber's Note. Apparent typographical errors have been corrected. The use of hyphens has been rationalised. Italics are indicated by _underscores_. Small capitals have been replaced by full capitals. THE DYER'S GUIDE. EPITOME OF COLOURS. _Colours obtained by_ SIR ISAAC NEWTON'S _method of decomposing the rays of light, the least refrangible being placed first, the most refrangible last._ See p. 18. [Illustration: RED. ORANGE. YELLOW. GREEN. BLUE. INDIGO. VIOLET.] THE DYER'S COLOURS AND THEIR CHIEF COMPOUNDS. SIMPLE COLOURS. BLUE, YELLOW, RED, BLACK[1]. RED _includes_ CRIMSON, SCARLET, MAROON, PINK, &c. COMPOUND COLOURS. GREEN is made with BLUE and YELLOW. ORANGE with RED and YELLOW. PURPLE ⎫ VIOLET ⎬ with BLUE and RED. LILAC ⎭ GREYS with BLACK, BLUE, and RED. ⎧ BLUE, YELLOW, and BLACK; OLIVES with ⎨ or ⎩ BLUE, YELLOW and RED. [1] BLACK according to the theory of Newton, denotes the _absence_, and WHITE the _presence_ of all colours. THE DYER'S GUIDE; BEING A _COMPENDIUM OF THE ART OF DYEING_ LINEN, COTTON, SILK, WOOL, MUSLIN, DRESSES, FURNITURE, &c. &c. WITH THE METHOD OF SCOURING WOOL, BLEACHING COTTON, &c. AND DIRECTIONS FOR UNGUMMING SILK, AND FOR WHITENING AND SULPHURING SILK AND WOOL. AND ALSO _AN INTRODUCTORY EPITOME OF THE LEADING FACTS IN CHEMISTRY, AS CONNECTED WITH THE ART OF DYEING._ BY THOMAS PACKER, DYER AND PRACTICAL CHEMIST. "Cet arte est un des plus utiles et des plus merveilleux qu'on connoisse." CHAPTAL. "There is no art which depends so much on chemistry as dyeing." GARNETT. _SECOND EDITION_, CORRECTED AND MATERIALLY IMPROVED. LONDON: PRINTED FOR SHERWOOD, GILBERT, AND PIPER, PATERNOSTER-ROW. 1830. PREFACE. To insist on the utility of the present Manual is, assuredly, superfluous. The favourable reception of the first edition, sometime since out of print, has stimulated the author to revise the work throughout, and to render it more deserving the public approbation. The _Appendix_ to the first edition now forms a part of the _Introductory Chapter_, to which it naturally belongs; to the whole have been added such improvements as the present advanced state of knowledge, and particularly chemical knowledge, has rendered absolutely necessary; and which the _practical dyer_ will find of considerable importance and much utility. The following _letter_ from the late SIR HUMPHRY DAVY, the first chemist of the age, appeared in the Preface to the first edition; it is here again reprinted as some proof of the sufficiency of that learned man's judgment, at least concerning the chemical theory of the art of dyeing. _No. 16, Berkeley Square_, _June 18, 1823_. SIR, I am very much obliged to you for your liberal communication on a subject of my Lectures: I will attend to the information you are so good as to give me in the next Edition. I am Sir, Your obliged and obedient servant, H. DAVY.