47 
Insects, description of new 135 
directions for collecting 3, 137 
distribution and number of spira- 
cles 148 
early spring 16 
edible Mexican 300 
embryology of hexapodous 110 
flight of 333 
forest-tree . . . 229, 258, 260, 263, 264, 305, 321, 
322, 327 
fossil 40,92,200 
genealogy of 253 
growth of 333 
guide to the study of 64 
Half Hours with 193 
Hauser on smell of 325 
injurious... 78, 100, 107, 111, 132, 196, 198, 
229, 258, 260, 263, 264, 305, 321, 
322, 327, 337, 338 
July 20 
■June 18, 43 
Labrador and Mount Washington, 
compared 35, 50 
life histories of 165, 177, 280, 282 
Mammoth Cave 91,115 
Maple 337 
May 17,41 
morphology of 11,140 
Mount Washington and Labrador 
compared 35,50 
nature’s means of limiting the num- 
bers of 142 
now arrangement of orders of 317 
number of segments in head of 
winged 256 
outlines of the study of 330 
paired sexual outlets in 271 
Palmen’s paired sexual outlets in . . 286 
parasitic 67 
Pebas, Equador 102 
Penobscot 2 
Polaris Expedition 179 
Salt Lake 137 
salt-water 44, 45, 52, 60, 80, 136, 278 
sense organs of 181 
senses of 333 
September 25 
smallest known 199 
smell in 326 
structure of 332 
synthetic 4 
and their allies 14 
Vineyard Sound 133 
vitality of 189 
of the West 191, 198 
Invertebrates, zoology of 207 
Isotoma, embryology of 94 
Japyx in the United States 145 
Joint worm 188 
July Insects 20 
June Insects 18,43 
Kentucky caves Araneina 160 
Beetles 168 
Labrador Bees 290 
Coleoptera 77 , 113 
Labrador Insects compared with Mount 
Washington 35,50 
Lepidoptera 30 
Pyralidae 123 
Wasps 290 
Lagoa, unusual number of legs in larva of. . 297 
Larch worm 272 
Larvse injurious to forest trees 264 
Legs, appendages homologous with 190 
Lepidoptera 175 
embryology 119 
gynandromorphism 167 
Labrador 30 
notes on larvae 242 
number of segments in larvae of. 294 
South American (Orton Expe- 
dition) 63 
Life histories of Insects 165, 177, 280, 282 
Limulus, anatomy 218 
ancestry 81 
an Arachnid 234, 235 
brain, internal structure 211, 220 
development 99, 109 
embryology 69, 95, 120, 151, 218, 299 
eye 210 
histology 218 
molting of shell 255 
morphology 81 
nervous system, development .... 162 
renal organs (supposed) 163 
Liver in Arachnida 287 
Lochmaeus tessella, life history 282 
Locust 175 
ravages 197 
Bed-legged 19 
Bocky Mountain, air sacs 221 
anatomy 197 
brain 221, 222 
of embryo and young 223 
breeding grounds (permanent). 197 
chronological history 197, 221 
distribution (southern limits).. 221 
embryology 197, 264 
flights, 1877-79 221 
in East Mexico in 1885. . 302 
Mexico in 1880 225 
San Luis Potosi, Mexi- 
co, in 1885 309 
geographical distribution 197, 264 
in Mexico 225 
migrations 178, 197 
narratives of journeys in relation 
to 197, 221 
in New Mexico 204 
question 232 
ravages 174 
report on 191, 197, 198 
uses of 197 
Louse 175 
Luray Cave, fauna 222 
Lysiopetalidae, repugnatorial glands 247 
revision 261 
Mallophaga, new 134 
Mamestra picta, larval stages 289 
Mammoth Cave Insects 91, 115 
