What's the difference?
By: prepared and supervised by E. Laurence Palmer
Contributors: New York State College of Agriculture. Rural Education Department
Series: Cornell rural school leaflet -- vol.32, no.3, January 1939; Cornell rural school leaflet -- vol.32, no.3
Publisher: New York State College of Agriculture
Published: 1939
Place of publication: Ithaca, N.Y
Language: eng
Number of pages: 31
Subjects: Chemical senses; Animals; Sense organs; Senses and sensation