ol 
No. 4. Report on the Results of Drepcine by the U. S. C. S. Steamer 
“Blake.” — XXIII. Report on the Isopopa. By Oscar HAarGcer. 18 pp. 
4 Plates. September, 1883. 40 c. 
Nos. 5 & 6. Supplement to the “‘ Blake” CepHatopops. By A. E. VERRILL. 
With 6 Plates. In press. 
No. 8. Supplement to Vol. V. of N. A. TeRRestRIAL Moxtiusxs. By W. G. 
Binney. 2 Plates. In press. 
(Vol XI. to be continued). 
Of the Memoirs. 
Vol. VII., completing the volume. 
No. 2. The Climatic Changes of Later Geological Times. Part III. pp. 265- 
394. October, 1882. Forsale. Apply to Prof. J. D. Whitney. 
Vol. VIII., completing the volume. 
No. 2. Exploration of the Surrace Fauna of the Gutr SrreaAm under the 
Auspices of the U.S. Coast Survey. By ALExanpEeR Acassiz.—III. Part I. 
The Porpitip# and VELELLID™. By AtexanperR Agassiz. 16 pp. 
12 Plates. $1.80. 
No. 3. North American Reptiles. 200 pp. 9 Plates. By Samurnt Garman, 
in Connection with the Kentucky Geological Survey, N. S. Sater, Direc- 
tor. (In press.) 
Vol. IX. 
No. 2. Selections from Embryological Monographs, compiled by ALEXANDER 
Ae@assiz, WALTER Faxon, and E. L. Marx.—II. EcurnopermMata. By 
ALEXANDER Acassiz. 45 pp. 15 Plates. July, 1883. $3.00. 
(Vol. IX. to be continued.) 
Vol. X. 
No. 1. Reports on the Results of Drepeine by the U.S. C. S. Steamer 
“ Blake.” — XXIV. Part I. Report on the Ecoutnt. By ALEXANDER 
_ AGassiz. 126 pp. 32 Plates. September, 1883. $7.00. 
(Vol X. to be continued.) 
Also preparing : — . 
Illustrations of North American Marine Invertebrates, from Drawings by Burxr- 
HARDT, SONREL, and A. AGassiz, prepared under the Direction of L. Acassiz. 
Selections from Embryological Monographs, compiled by A. Acassi1z, W. Faxon, 
and EK. L. Marx. Papers by Prof. E. Enters on the Annelids of the Straits of 
Florida dredged by Messrs. PourtaLrs and Agcassiz; in Connection with the 
Geological Survey of Kentucky, by Prof. N.S. Sater on the Brachiopoda of 
the Ohio Valley; by A. Hyatt, on Cephalopods; by W. G. Binney on N. A. 
Mollusca; by E. L. Marx on the Development of Arachnactis; by M. E. Waps- 
wortTH; by J. W. Fewxes, on the Embryology of Annelids; and by A. Acassiz 
and C. O. Wuirman, on the Embryology of Bony Fishes. 
In Connection with Professor J. D. Wuitnry, the Water Birds of the United 
States. By Barrp, Brewer and Ripeway. 
Reports on the Dredging Operations in Charge of ALEXANDER Agassiz, by the 
U.S. Coast Survey Steamer “ Blake,” for 1877, 1878, 1879, and 1880. H.B. Brapy 
(Foraminifera), P. H. CarpENTER (Crinoidea), W. H. Datx (Mollusks of the Gulf 
of Mexico and the Caribbean Sea), G. B. Goopr and T. H. Bean (East Coast 
Fishes, and Fishes of the Gulf of Mexico and the Caribbean Sea), C. E. Hamiin 
(Hast Coast Mollusks), A. A. Husprecut (Nemerteans), A. M1LtNE-Epwarps (Crus- 
tacea), J. Murray (Sea Bottoms), E. Perripr (Starfishes), A. E. Verrixu (Alcy- 
onaria), and H. Tuer (Holothuroidea)., 
