THE 



EMBRYOLOGY AND METAMORPHOSIS 



OF TBTE 



MACEOURA 



^V. Iv. BROOKS, 



PROFESSOR OF ANIMAL MORPHOLOGY IN THE JOHNS HOPKINS UNIVERSITY, 



AND 



F. H. HERRICK, 



PROFESSOR OF BIOLOGY IN ADELBERT COLLEGE, 



LATE FELLOW IN THE JOHNS HOPKINS UNIVERSITY. 



WITH FIFTY-SEVEN PLATES. 



S. Mis. 94 21 



