. Bulletin of the Department of Agriculture. Agriculture; Agriculture. jV^^Vi. BULLETIN No. 309 ^ Contribution from the Bureau of Plant Industry ^33 WM. A. TAYLOR, Chief J&f'^iKfU. Washington, D. C. PROFESSIONAL PAPER November 4, 1915 ZACATON AS A PAPER-MAKING MATERIAL. By Charles J. Brand, in Charge, and Jason L. Merrill, Assistant Chemist, Paper- Plant This bulletin is printed upon paper derived from the zacaton plant. CONTENTS. Introduction 1 Botanical history and systematic position of zacaton 3 Distribution of zacaton 6 Laboratory tests of pulp production 10 Micr
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. jV^^Vi. BULLETIN No. 309 ^ Contribution from the Bureau of Plant Industry ^33 WM. A. TAYLOR, Chief J&f'^iKfU. Washington, D. C. PROFESSIONAL PAPER November 4, 1915 ZACATON AS A PAPER-MAKING MATERIAL. By Charles J. Brand, in Charge, and Jason L. Merrill, Assistant Chemist, Paper- Plant This bulletin is printed upon paper derived from the zacaton plant. CONTENTS. Introduction 1 Botanical history and systematic position of zacaton 3 Distribution of zacaton 6 Laboratory tests of pulp production 10 Micromeasurements of fibers and other cells. 14 Page. Chemical investigation of the grass and pulp. 15 Cellulose from zacaton 18 Semicommercial tests of the pulp 20 Physical tests of zacaton papers 25 Conclusion 27 INTRODUCTION. There appears to be a constant and increasing interest in the discovery of plant materials which may be substituted for wood and rags in the making of paper stock of various kinds. The uses to which paper may be put are multiplying rapidly, the consumption for present purposes is increasing greatly, and there is a constant depletion of existing supplies. Many materials from both wild and cultivated plants are at present going to waste, so that a natural desire to save them adds to the general interest in the subject. This interest is world wide and practically spontaneous. In southern China bamboos and rice straw are under experiment; in Manchuria the stalks of the grain sorghums; in Mexico wood waste and various trees not now used for other purposes; and in Egypt the plant formation known as Nile -mid, which constitutes the dense jungle growth of the upper White Nile and contains a largo proportion of papyrus plants. In the Philippines attention is being given to bamboos and various other .mil also lo the fibrous by-products of the Manila-hemp indus- i The Paper-Plant Investigations of the Bureau of Plant [ndustry are conducted under the direction of Charl
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