This book is included in the Self Reliance Cooking, Canning, Preserving section.
Preface THE author's first work, dealing amongst other matters with the analyses of brewing materials and products, was published sixteen years ago, entitled Notes on Brewing, being a collection of the more important of his articles contributed during several years to the Brewers' Guardian. Since that time it has been his occasional occupation to write articles on brewing for one of the trade journals and to carry out analytical work for several large brewing concerns. To this it may be added that for the past eighteen years he has been daily employed in conducting practical brewing and malting operations on an extensive scale, and can therefore, with reason, claim to have a practical and scientific knowledge of the subjects which his present work treats. So far as he is aware, there are but two works dealing solely with analyses relating to brewing one having been published so far back as 1884, and slightly revised some six years ago, the other, more recent, being a drawn-up course of laboratory studies for the special use of the students at the Birmingham University. There can be hardly any doubt under these circumstances that there is at present a want for an up-to-date work for the use of brewers and brewing students, and it is to supply this want that the author has published the present volume. Of late years there has been considerable controversy amongst brewers' analysts as to the standardisation of analytical methods; and although nothing definite has so far been decided, the author has borne the controversy in mind, and, in view thereof, has endeavoured to steer clear of the same, and not vary the generally employed methods of analysis more than is consistent with modern views, which have resulted in more accurate information in the evaluation of brewing materials being obtained. Details are given of the polarisation of light, a subject neglected in all other works on brewing; particulars are also given of the latest improvements in the polarimeter. A chapter is devoted to arsenical work, which is also of the greatest importance; whilst in the appendices is given a series of tables and typical analyses which, it is believed, will prove extremely useful, particularly to those about to commence a laboratory course. The author has left the consideration of the biological examination of water, malt, hops, and beer out of the part dealing with methods of analysis, but has embodied the same in a separate chapter on biological work, since an introduction to such a chapter is necessary before a general idea of cause and effect in this direction can be conveyed. Here will also be found particulars of the microscope, the cultivation of single-cell yeast, the isolation of bacteria, and other matters of general interest. The author is indebted to Messrs Townsen & Mercer, 34 Camomile Street, London, E.G., and to Messrs Baird & Tatlock, 14 Cross Street, London, E.G., for the loan of blocks from which numerous illustrations have been produced. The reader is assumed to have a slight knowledge of theoretical chemistry, if not of practical analytical methods, but the book is not intended to replace any of the already numerous works on chemistry. Finally, although the work is primarily intended for beginners, it is anticipated that advanced students and qualified analysts will find it useful as a work of reference. K. DOUGLAS BAILEY, F.C.S., F.R.M.S. LONDON, July 1907. Contents
PART I. - QUALITATIVE AND QUANTITATIVE ANALYSIS PART II. - THE POLARIMETER Polarisation of Light Specific Rotatory Power Solution Weight Solution Factors Cupric Oxide Reducing Power PART III. - CARBOHYDRATES AND ALLIED SUBSTANCES PROTEIDS OK ALBUMINOIDS AND ENZYMES PART IV. - INDICATORS USED IN ALKALIMETRY PART V. - PREPARATION OF STANDARD AND OTHER SOLUTIONS PART VI. - METHODS OF ANALYSIS PART VII. - ARSENIC PART VIII. - INTERPRETATION OF THE RESULTS OF ANALYSES PART IX. - MICROSCOPICAL AND BIOLOGICAL PART X. - APPENDICES. A. TYPICAL ANALYSES B. TABLES AND FACTORS INDEX. End of Preview. RETURN to Main Titles Index or Self Reliance Cooking, Canning, Preserving
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