CONTENTS OF VOL. V. - v 
TORTOISES OF THE CRETACEOUS OF New JERSEY. By E. D. Cope, 562 
THE EMBRYOLOGY OF CHRYSOPA, AND ITS BEARINGS ON TEE CLASS- 
B 
IFICATION OF THE NEUROPTERA. y AzS: Fackard Jr; s 564 
THE ORGANIC IDENTITY OF THE ALBUMEN AND oaia OF ALL 
THE PHANEROGAMÆ. By T. C. Hilgard, j 568 
Paean y LEAVES. Illustrated. By W. j: Beal, . : é 571 
N E OIL WELLS OF TERRE HAUTE, INDIANA. By T. Sterry 
ae t, A 5 : i r x f 7 à i i š 576 
Tur DEVELOPMENT OF AMBLYSTOMA LURIDA. Illustrated. By P. l 
Ri Hoy, EREE $ $ 5 3 P ‘ 4 ‘ x 578 
OBSERVATIONS ON THE SYSTEMATIC RELATIONS OF THE FISHES. 
E. D. Cope, . x ; 579 
Remarks by F. W. Pathe: p. 5 t 
THE LAWS OF ORGANIC PAS do By E. D. Cope, " i 593 
ON A NEW MICRO-TELESCOPE. y R. H. Ward, 608 
ie WITH VIBRATING CILIA. Illustrated. By J effries Wy- 
ma 611 
THE pane By W: wW. Bailey á 616 
CONTRIBUTIONS TO THE NATURAL Ae OF THE Vartit. OF 
ITO 1. By James Orton, à á š 619 
THE Genus HYSTERIUM AND SOME OF ITS pees With = 
. Billings, . 4 626 
Some DIFFERENCES BETWEEN Wasteek AND Baarit ang By 
T. Martin Trippe, . 632 
SYMMETRICAL FIGURES IN api Fa ATHERS. ideetats. Ras jepe as 
Lewis, 675 
BULLOCK’S itere Mustrated. By Elliott Coues, k i j 678 
THE CHINESE WHITE x INS y B. Silliman, n 683 
INSTRUCTION TO a TEACHERS aT SOUTH poe Eok i 685 
CONTRIBUTIONS TO THE NATURAL HISTORY OF THE VALLEY OF 
Quiro. No. II. By James Orton, . x : ‘ ‘ ‘ 693 
NOTES ON THE GEODES OF ILLINOIS. By Geo. H. Perkins, . í 698 
Tue MAMMOTH CAVE AND ITS INHABITANTS. By the Editors, . 739 
ON THE CRUSTACEANS AND INSECTS OF THE MAMMOTH CAVE. 
a i : ‘ ` > T44 
A SINGING HESPEROMYS. With music. By Samuel Lockwood, . 761 
THE LONG-CRESTED Jay. Illustrated. By Elliott Coues, . š 770 
REVIEWS. 
The Geology and Physical Geography of Brazil, p. 33. The Classifica- 
tion of the Eared Seals, pp. 37, 238. The Early Stages of Ichneumon 
Parasites. Ilustr ated. p. 42. Muscular Homologies, p. 108. Forms 
The ord of Ent ane? pp. Dea 422. aes of European 
ras ae kana in 1868, p. 158. The Genesis of Species, p. 223. 
Medical Microscopy, p. 226. Recent uate ener Publications, p. 234. 
