Author
Francis D. Curtis
11 titles available
Everyday biology

Biology in daily life
A digest of investigations in the teaching of science ..

A manual of experiments in elementary science
Science in daily life

Biology for today

A digest of investigations in the teaching of science in the elementary and secondary schools
Investigations of vocabulary in textbooks of science for secondary schools

A synthesis and evaluation of subject-matter topics in general science
Biology--the living world
Teachers' manual and key for Curtis, Cladwell, and Sherman's Everyday biology
About Francis D. Curtis
Free ebooks by Francis D. Curtis available for download.