Archive image from page 305 of The anatomy, physiology, morphology and. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author; CUbiodiversity4765349-9885 Year: 1890 ( 26o THE EMBRYOLOGY OF THE BLOW-FLY IN THE EGG. Pn;_ AA Three diagrams representing the manner in which the head discs and nervous system of the embryo arc relatedâ/ and 2, before the retraction, and ?, after the retraction, of the fore-head to
Archive image from page 305 of The anatomy, physiology, morphology and. The anatomy, physiology, morphology and development of the blow-fly (Calliphora erythrocephala.) A study in the comparative anatomy and morphology of insects; with plates and illustrations executed directly from the drawings of the author; CUbiodiversity4765349-9885 Year: 1890 ( 26o THE EMBRYOLOGY OF THE BLOW-FLY IN THE EGG. Pn;_ AA Three diagrams representing the manner in which the head discs and nervous system of the embryo arc relatedâ/ and 2, before the retraction, and ?, after the retraction, of the fore-head to form the cephalo-pharyngeal sac : c, the crop ; g, cephaHc ganglion ; /', antennal, and P, optic discs ; iiix, 6rst pair of maxillx ; /â /<, cephalo-pharynx ; r, the ring ; s, salivary duct ; st, stomodx'um ; z\ hollow ventricle of the brain ; v g, ventral ganglia. The invaginated epiblast in 3 is represented by a dark single line in / and 2. The dotted lines in _' and 3 trace the course of the tracheal vessels of the discs, which arise close to the position of the future anterior spiracle. / and 2 represent embryos in the stage from which the sections represented in I'late XV. were taken ; j exhibits the relations of the parts in the young larva.
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Keywords: 1890, archive, blowflies, book, bookauthor, bookdecade, bookpublisher, booksubject, bookyear, drawing, historical, history, illustration, image, london_pub_for_the_author_by_r_h_porter, lowne_benjamin_thompson_1839_, page, picture, print, reference, vintage
