Elementary Science by Grades Book Four: A Nature Study and Science Reader

Persing, Ellis C., Wildman, Edward E. · 1929 · D. Appleton and Company · 13 pictures

Science · Ants · Wasps · Turtles · Crayfish · Trees · Mushrooms · Birds · Beavers · Muskrat · Bears · Milky Way · Balloons · Water · Windmills · Kites

Internet Archive · National Library of Education · Public domain (published before 1931) · More from this library