MUSEUM OF COMPARATIVE ZOOLOGY. i 



No. 6. The EYES in SCORPIONS. By G. H. Parker, pp. 36. 4 Plates. December, 1887. 75c. 

 No. 7. Studies from tlie Newport Marine Laboratory XIX. On certain MEDUSA 



from New England. By J. W. Fewkes pp. 32. 6 Plates. February, 1888. $1.00. 

 No. 8. On certain Vacuities or Deficiencies in tlie CRANIA of MAMMALS. By D. D. 



Slade. pp. 6. 2 Plates. March, 1888. 25c. 

 No. 9. The Superior Incisors and Canine TEETH of SHEEP. By Florence Mayo. 



pp. 12. 2 Plates. June, 1888. 25c. 

 No. 10. The RATTLE of the RATTLESNAKE. By S. Gasman, pp. 10. 2 Plates. 



August, 1888. 18c. 



Vols. XIV.-XV. [April, 1888] contain : — 



A Contribution to American THALASSOGRAPHY. Three CRUISES of the United 



States Coast and Geodetic Survey Steamer "Blake" in the GULF OF 



MEXICO, in the CARIBBEAN SEA, and along the ATLANTIC COAST of 



the UNITED STATES, from 1877 to 1880. By Alexander Agassiz. 2 vols. pp. 



xxii.. 314, and (6), 220 Maps and Woodcuts. [April,] 1888. For sale by Houghton, 



Mifflin, & Co. 

 Vol. XVL, Geological Series, Vol. II. [March, 1888-] contains : — 



No. 1. On the Petrographical Characters of a DIKE of DIABASE, in the BOSTON 



BASIN. By W. H. Hobbs. pp. 12. 1 Plate. March, 1888. 25c. 

 No. 2. On the Geology of the CAMBRIAN DISTRICT of Bristol County, Massachusetts. 



By N. S. S BALER, pp.30. Map and 2 Plates. October, 1888. 45c. 

 No. 3. FOSSIL PLANTS collected at Golden, Colorado. By Leo Lesquereox. pp. 18. 



December, 1888. 15c. 

 No. 4. The FAULTS in the TRIASSIC FORMATION near Meriden, Connecticut. By 



W. M. Davis, pp. 28. 5 Plates, April, 1889. 25c. 

 No. 5. On the Occurrence of FOSSILS of the CRETACEOUS AGE on the Island of 



Martha's Vineyard, Massachusetts. By N. S. Shalbr. pp. 10. 2 Plates. June, 



1889. 25c. 



No. 6. The Intrusive and Extrusive TRIASSIC TRAP SHEETS of the Connecticut 

 Valley. ByW. M. D,*. vis and C. L. WflrrTLE. pp 47. 5 Plates. December, 1889. 80c. 



No. 7. The TOPOGRAPHY OF FLORIDA. By N. S. Shaler. With a Note by Alexander 

 Agassiz. pp. 20. 1 Plate. March, 1890. 25c. 



No. 8. On some Occurrences of OTTRELITE and ILMENITE SCHIST in New England. 

 By J. E Wolff, pp. 8. April, 1890. 5c. 



No. 9. On KERATOPHYRE from Marblehead Neck. By J. H. Sears, pp. 6. July, 



1890. 5c. 



No. 10. METAMORPHISM of CLASTIC FELDSPAR in Conglomerate Schist. By 



J. E. WoLEF. pp. 12. 2 Plates. September, 1891. 45c. 

 (Vol. XVI. to be continued.) 

 Vol. XVII. [July, 1888-December, 1889] contains: — 



No. 1. Studies from the Newport Marine Laboratory. XX. On the Development of 



the Calcareous Plates of ASTERIAS. By J. W. Fewkes pp. 56. 5 Plates. 



July, 1888. $1.00 

 No. 2. On the LATERAL CANAL SYSTEM of the SELACHIA and HOLOCEPHALA. 



By S. Garman pp. 64. 53 Plates. September, 1888. Sfl 50. 

 No. 3. The CORAL REEFS of the Hawaiian Islands. By Alexander Agassiz. pp. 50. 



13 Plates April, 1889. $1.25. 

 No. 4. Studies on the Primitive Axial SEGMENTATION of the CHICK. By Julia B. 



Platt. pp. 20. 2 Plates. July, 1889. 30c. 

 No. 5. The Morphology of the CAROTIDS, based on the Study of the Blood-vessels of 



CHLAMYDOSELACHUS ANGUINEUS, Garman By H. Ayers. pp. 33 1 



Plate. October, 1889. 42c. 

 No. 6. CAVE ANIMALS from Southwestern Missouri. By Samdel Garman pp. 25. 



2 Plates. 25c. December, 1889. 

 Vol. XVIII. contains : — 



Reports on the Results of Dredging by the U. S. C. S. Steamer "Blake." 



XXIX. Report on the MOLLUSCA. Part II. GASTROPODA and SCAPHO- 



PODA. By W. H Dall. pp 492. 31 Plates. June, 1889. S5.50, 



