In these reprinted leaflets the reader will find many methods of presentation of a great variety of subject-matter. A wide range has purposely been included, in the hope that any interested teacher may find at least one or two leaflets that will be suggestive in his own work. Our own ideas as to what is a valuable leaflet have changed greatly since the work was begun; and it is to be expected that they will continue to change with the progress of the work and the development of the schools. It would be an interesting review if we were to summarize our own experiences with our own work. The leaflet that is most praised by the critics may be the least useful in practice. The greatest danger is that of making the work too complete, too rigid and too formidable. L. H. BAILEY, _Director College of Agriculture._ CONTENTS. PART I. TEACHERS' LEAFLETS. Leaflet. Page. The Schoolhouse 9 L. H. Bailey. I. What is Nature-Study? 11 L. H. Bailey. II. The Nature-Study Movement 21 L. H. Bailey. III. An Appeal to the Teachers of New York State 31 L. H. Bailey. IV. What Is Agricultural Education? 45 L. H. Bailey. V. Suggestions for Nature Study Work 55 Anna Botsford Comstock. VI. A Summer Shower 81 Ralph S. Tarr. VII. A Snow Storm 93 Anna Botsford Comstock. VIII. A Handful of Soil: What It Is 99 Ralph S. Tarr. IX. A Handful of Soil: What It Does 115 L. A. Clinton. X. The Brook 125 J. O. Martin. Introduction by L. H. Bailey. XI. Insect Life of a Brook 135 Mary Rogers Miller. XII. Life in an Aquarium 141 Mary Rogers Miller. XIII. A Study of Fishes 157 H. D. Reed. XIV. The Opening of a Cocoon 167 Mary Rogers Miller. XV. A Talk about Spiders 171 John Henry Comstock. XVI. Life History of the Toad 185 Simon Henry Gage. XVII. Life in a Terrarium 207 Alice I. Kent. XVIII. Directions for Collecting and Preserving Insects 213 Anna Botsford Comstock. XIX. Some Tent-Makers 227 Anna Botsford Comstock. XX. Mosquitoes 237 Mary Rogers Miller.