DU/AM MOLOGT LIBRAE THE BOTANICAL LIBRARY OF THE UNIVERSITY OF CALIFORNIA. GIFT OF MR. AND MRS. T. S. BRANDEGEE. 1906 BOTANICAL MICRO-CHEMISTRY AN TO THE STUDYINTRODUCTION OF VEGETABLE HISTOLOGY OFPREPARED FOR THE USE STUDENTS BY V. A. POULSEN TRANSLATED WITH THE ASSISTANCE OF THE AUTHOR AND CONSIDERABLYENLARGED BY WILLIAM TRELEASE THEPROFESSOR IN UNIVERSITY OF WISCONSIN Boston S. E. CASSINO AND COMPANY 1884 BIOLOGY Copyright, CO.BY S. E. CASSINO & 1883. ELECTROTYPED. BOSTON STEREOTYPE FOUNDRY, 4 PEARL STREET.No. TO DOCENT EUG. Ph.D.WARMING, JFrientr, PROFESSOR LEOPOLD KNY, THIS BOOK IS DEDICATED IN THANKFULNESS BY THE AUTHOR. CONTENTS. PACK EDITIONPREFACE TO AMERICAN vii TRANSLATOR'S PREFACE ix AUTHOR'S PREFACE x INTRODUCTION xi OF BOTANICAL MICRO-CHEMISTRY xvLITERATURE MICRO-CHEMICAL REAGENTS AND THEIR APPLICATION . . i APPENDIX. MOUNTING MEDIA 65 CEMENTS 71 QE,Part VEGETABLE SUBSTANCES AND THE MEANS OF RECOGNIZING THEM 75 INDEX no SPECIAL REAGENTS, REACTIONS, AND METHODS. PAGB PAGE Barcianu's mucus reaction . . re-9 Pringsheim's hypochlorin Barfeed's test.... action 22glucose 87 Beale's carmine Ranvier's ...52 picro-carmine 53 De reaction . 82 test .Bary's .epiplasm Raspail's protoplasm 44 Franchimont's Russow's ... 12(Unverdor alcoholben's) potash resin test Sachs' reaction for starch in94 . .Grenacher's alum-carmine bodies ....50 chlorophyll 7 Hanstein's method of Schultze maceration fluid...clearing 34 tissues ii starch reaction . .