Livres associés

Insect life : an introduction to nature-study and a guide for teachers, students, and others interested in out-of-door life.

Handbook of nature-study for teachers and parents based on the Cornell nature-study leaflets

Lessons in nature study

Manual of nature study by grades to accompany the course of study for the city and town schools of Indiana

• Some effects of electrically stimulating ganglion cells...
  Auteur(s): Hodge, Clifton Fremont
• Nature study and life
  Auteur(s): Hodge, Clifton Fremont
• Civic biology a textbook of problems, local and national, that can be solved only by civic coöperation.
  Auteur(s): Hodge, Clifton Fremont