Index to Vol. XX. 
Sphæru laria bombi; 73. 
Sphenodon, tie pty of, 175. 
ertebra of 736. 
Sphenosaurus, 76, 7 
i 
Sph : 
Spi er, new trap- aes, 584 
Spi ders, —_ —- 1975 
ms on the embryology of, 825. 
a classification of, of, 977. 
earns, R. E. C., Teredo, or shipworm, 131. 
Stephasite, 6 60. 
Soc: sonnet . E., protracted flight of a golden 
Ea Baargcieid, rips . 
lummets 
Stones, precious, sa the U. S. A., 
aingel of "s of hard maple, og 
on of, 7 
<5 ofc 
Summer warbler, 28. 
Superior, Lake, output of iron ore mines of, 999. 
Saarni ition, a curious, 744. 
U.S. geological, 709. 
Tenia eae 
Tamias striatus yten, 242. 
Tanager, scarlet 
Tapinosoma, pkra a 
d, 2 
Teeth, human, mtns be PE of, 989. 
Talore o cornutum, 768. 
d y 
na, ieshistory of, 988. 
Thelphusa, depressa, 178. 
Thlinkit nouns and v erbs, 
Thomas’ notes on May , 309. 
Thompson? s bbliceraohy of "Provezta 259. 
Thott ice T pou oe osbornei, 269. 
ii give ack, 28. 
inea, 
Tineola biselliella, 169. 
Tin ae a hills, 274. 
Tinoc enops, 316. 
Tiss: ues, esene of high pressures on animal, 
Tiense, 28. 
1085 
Toad-fish, development of, 77. 
Todd, J. È., boulder mosaics in Dakota, 1. 
Tomocerus, 300. 
Tongues, Turki, 
Tooth, a ina E n Mysor rex varius, 903. 
of Craspedodon lonzeensis, 804. 
5 Seia Sigs s sorts in the bush, 145. 
t, 967 
tactile railway, 963. 
Triznia mirabilis 
Trilobites, 38,3 
Trioza, 283, 28 
Trotter, S., mammary gland of elephant, 927. 
Eee gga to 
Turtle, 
Turtles, lor seni = 897. 
Twigs killed by telephone wires, 806. 
Uintatherium lacustre, 155. 
Usaramo, 264. 
Variation, peeaire Beh 
ntane coro of, 753. 
Ters pirker 6 Goodale, 
Tat ae segments, homologies of, 956. 
Vireo, a eyed, 2 
Viscera, reproduction of in feather stars, 894. 
Wainad, the, 2 
Walker, J. R. ` pee notes on recalcification of 
human teeth, 9 
Washburn, F. L , mortality of fish at Lake Mille 
SE Lac, Min inn. , 896. 
Wert India, ee implements of, go8. 
Wheat, the drying of, 6 
Whitman, È O., osmic "acid and Merkel’s eg 
for developing nascent histological distinc 
tions, 200. 
a on Polynesia, ane 
ar: 2. 
Witlaczil on Coc 287. 
oodpecker, golden winged, 28, 
d-headed, 28. 
ood’s nai s A EE 
World, government land and marine surveys of, 
Worms, 738. 
Wren, house, 27. 
Xenylla, 300. 
Xingu, the, g6o. 
Yellow-throat, Maryland, 27, 
Zaglossa 
bruijni, <a 
Zonotrichia, elbicollis, 828. 
Zoology, Packards’s first lessons in, $73. 
The numbers of the Naturalist for 1886 were issued at the fol- 
lowing dates: January, Dec. 29, 1885; February, Jan. 23, 1886; 
March, Feb. 25th; April, March 23d; May, April 24th; June,’ 
June 1st; July, ?; August, ?; September, ?; October, Oct. 18th; 
November, Nov. 23d; December, Dec 
. 
