Also Contains Directions For Collecting And Preserving Scale Insects, Coccidae; The Methods Employed At The Naples Zoological Station For The Preservation Of Marine Animals, By Salvatore Lo Bianco; Directions For Preparing Study Specimens Of Small Mammals, By Gerrit S. Miller Jr.; Directions For Collecting And Rearing Dragonflies, Stoneflies, And Mayflies, By James G. Needham.