00247nam a22000977a 4500003000400000008004100004082001600045100002200061245003600083260003000119OSt230828b        |||||||| |||| 00| 0 eng d  a595.7bS59P  aSnodgrass, R. E.   aPrinciples of Insect morphology  aBombaybT. M. H. edc1935