كتب ذات صلة

The walks abroad of two young naturalists

Syllabus of lectures. Nature study.

Study of animal families in schools

School and home gardens

• Some effects of the war upon the seed industry of the United States.
  المؤلفون: Wheeler, William Archie ,  Edler, George Christian
• Silk worm food plants: cultivation and propagation.
  المؤلفون: Oliver, George Watson. [from old catalog]
• Reports upon archaeological and ethnological collections from vicinity of Santa Barbara, California, and from ruined pueblos of Arizona and New Mexico, and certain interior tribes.
  المؤلفون: Abbott, Charles C. ,  Putnam, F. W.