530 INVERTEBRATE MORPHOLOGY. 



B. Grassi. Analomia comparata dei Tisanuri e comiderazioni generali sull' 



organizzaziane degli Insetti. Atti della R. Accad. Lincei, Serie IV. rv, 



1887. 

 K. Heider. Die embryonale Entwicklung wn Hydrophilus piceus L. Jeua, 



1889. 

 J. Van Rees. Beitrdge zur Kenntniss der inneren Metamorphose wn MU.&CO, 



vomiloria. Zoolog. Jahrbiicber, in, 1888. 

 V. Graber. Vergleichende Studien am Keimstreif der Insekten. Denksckr. 



Acad. Wisseusch. Wieu, LVIII, 1890. 

 H. T. Fernald. The Relationships of Arthropods. Studies from the Biolog. 



Labor. Jobns Hopkins Univ., iv, 1890. 



B. T. Lowne. Anatomy, Physiology, Morphology, and Development of the Blow- 

 fly. London, 1890-91. 

 W. M. Wheeler. A Contribution to Insect Embryology. Journ. of Morphology, 



vni, 1893. 

 T. H. Huxley. Anatomy of Cockroach. Text-book of Anatomy of Invertebrate 



Animals. New York, 1878. 

 W. K. Brooks. Anatomy of Grasshopper. Hand-book of Invertebrate Zoology. 



Boston, 1890. 



