Produced by Andrew Sly. Transcriber's Comments This is an adaption of the electronic transcription made by Paul Hubbs and Bob Gravonic. Using microfiche of the original (Canadian Institute for Historical Microreproductions no. 42355) as a copy-text, I've made corrections and added a considerable amount of material. Irregular spellings in the original have been retained. Explanatory remarks regarding numbering are enclosed in square brackets. Young's Demonstrative Translation of Scientific Secrets; or A Collection of Above 500 Useful Receipts on a Variety of Subjects. Printed by Rowsell & Ellis, Toronto, 1861. INTRODUCTION The object of the present work is clearly announced in its title. It is to collect within a small compass the instructions of experimental knowledge upon a great variety of subjects which relate to the present interests of man. It contains above five hundred genuine and practical receipts, which have been compiled by the publisher with extreme difficulty and expense. A reference to the list of subjects which the work contains, will show that the publisher's researches have been extensive, while a comparison of the work with others of the same general character evinces patient labour, and cannot fail to give it pre-eminence. While the track pursued is not new, it is more thorough, and more easily followed than that marked out by any previous compiler known to myself. The work contains not merely the outlines on the subjects to which it refers, but, what appears to my own mind one of its excellences, the full and clear explanations of these subjects. To all classes of people, without exception, the work is of great value. It is fit, on every account, that the publisher should be encouraged in this production. The work is worthy the acceptance of all, and one which every man may prize. 1. ORIENTAL PAINTING