CONTENTS OF VOLUME III. 



I. On Distomum crassicolle Rud. ; with brief notes on Huxley's proposed classification 



of worms. Plate 1. By Charles Sedgwick Minot. (Published June 11, 1878.) . . l 



II. The early types of insects; or the origin and sequence of insect life in palaeozoic 



times. By Samuel H. Scudder. (Published March 6, 1879.) 13 



III. Palaeozoic cockroaches: a complete revision of the species of both worlds, with 



an essay toward their classification. Plates --6. By Samuel II. Scudder. (Pub- 

 lished November 29, 1879.) 23 



IV. New and interesting hydroids from Chesapeake Bay. Plates 7-9. By SamuelF. Clarke. 



(Published January, 1882.) 135 



V. Archipolypoda, a subordinal type oj spined myriapods from the carboniferous for- 

 mation. Plates 10-13. By Samuel H. Scudder. (Published May, 1882.) . . . 143 

 VI. Some observations on the embryology of the teleosts. Plates 14-lfi. By J. S. 



Kingsley and H. W. Conn. (Published April, 1883.) 183 



V 1 1 . The carboniferous hexapod insects of Great Britain. Plate 17. By Samuel H. 



Scudder. (Published June, 1883.) 213 



VIII. On the development of Oecanthus niveus and its parasite, Teleas. Plates 18-25. 



By Howard Ay ers. (Published January, 1884.) ........ 225 



IX. Two new and diverse types of carboniferous myriapods. Plates 26 and 27, tigs. 1-4. 



By Samuel H. Scudder. (Published March, 1884.) 283 



X. The species of Mylacris, a carboniferous genus of cockroaches. Plate 27. tigs 5—11. 



By Samuel H. Scudder. (Published March, 1884.) 299 



XI. Notes on the peeping fk Hyla pickeringii LeConte. Plate28. By Mary H. Hinckley. 



(Published .May, 1884.) .".11 



XII. PaLAEODICI'YOPTERA : OH THE AFFINITIES AND CLASSIFICATION OE PALAEOZOIC HEXAPODA. 



Plates 29-32. By Samuel H. Scudder. (Published April, 1885.) .... 319 



XIII. Winged insects from a paleontological point of view, or the geological histori 



of insects. By Samuel H. Scudder. (Published April, 1885.) ..... :'>•">:'> 



XIV. The life-history of the Hydromedusae : a discussion of thk origin of the Medusae, 



and of the significance of metagenesis. Plates .'S7-44. By W. K. Brooks. (Pub- 

 lished June, 1886.) • • 359 



XV. The oldest known insect-larva, Mormolucoides articulatus, from the Connecticut 



River rocks. Plate 45. By Samuel H. Scudder. (Published September, 1886.) . 431 

 XVI. Note on the supposed myriai an genus Trichiulus. By Samuel II. Scudder. (Pub- 

 lished September, 1886.) • • l: '" s 



XVII. A review of mesozoic cockroaches. Plate- 16-48. By Samuel II. Scudder. (Pub- 

 lished September, 1886.) • '•■ ■' 



XVIII. A North American Anthurus — its structure and development. Plates 19-50. By 



Edzvard A. Burl. (Published October, 1894.) .... 487 



India . 507 



Errata . . 50'.) 



