PAGE 
Lava-plain in Idaho......... 4-5 
Beng mative. :. 21.04... Bi et eae 
oxide......... 3 
Lecture-course, programme. . 95 
SEMMEStONC. . 2... 2... 15-19, 22, 58 
erosion of. =: iE OS 6O=65 
Literature of electrolysis. .... 
Locomotion of animals. ..164—167 
Magnetite of Gunnison, Col- 
Mammoth cave of Kentucky. . 59-66 
Manganese ore, in Southwest 
Wimemitaee cts ois == = 5: ' we. TOR 
Maple juice, sap-sand........ 168 
Marbles of Virginia... 163 
NIM ONUC! 4°. fc%, oe ees Bee chs 
Members, election of new. .77, 105, 
129, 150, 158, 163, 176, 180 
PAGE. 
North Pole, discovery of... .46-—48 
Observatories, time - signals 
from! see 86-87 
Obsidian implements from 
Guatemala sass 2. 105 
Oregon, volcanic ash........ 55 
Organic aromatic bases, com- 
pounds, of... 22 2eee= 100 
Organ-pipe sonometer.... .. 163 
Origin of carbon minerals. 109-IIT 
Peat, transformation of... 71-76 
artificial conversion into 
Calle eater ee oe ke 75 
Reperimo mn LexaSe<:<)ist/t . 52 
Perspective, binocular...... g-15 
Petroleum-testers........ 139-143 
Photography applied to astro- 
HOMNY 2 PEt se cts 143-146 
deceased .77, 108, 158, 159, 164 recent advances in.. =i B76 
Meteorites, fusion-structures Physical theories, moral bear- 
1 ee Ae ae a 153-155 REGGAE sae a alent ests ..96, 99 
Methods of animal locomotion, Pompey! dc eae saeco 19, 49 
164, 167| Pot-holes near Williams- 
Minerals of Weehawken tun- pridae:. NE Vs) os: 181-183 
MOL eee taesc ye ...129-131 | Prevention of tubercular dis- 
Mineral resources of South- SASGs dota ate(ush sete 181 
Wese Vikginias =)... 159-163 | Pammeess.. 2253/02 cs. ss 49-52, 56 
Mima Gano so. 2) .0: ws 4-6 | Quartz crystals, fluid-bearing, 
Montanaie.. eek ee. 4-6 131-136 
iINevadas ==. .7, 172-175 | Report of Library Committee. 125 
Southwest’n Colorado. 7-8 Publication Committee... 125 
ita eee soe. oS ee 168-172 Recording Secretary..... 125 
Montana, torests and mining. 5 MireaSUTER. ses. ct) 2.5% 124 
Moon, horizontal enlargement Rhodochrosite from  Ulay 
116-118 mines, Colorado...... 3 
photographs of...... 143—14g| hwelyte 7 (028... 62a 2. Bar 173 
Moral bearing of recent physi- Rocks, thin sections... 49-53, 154 
caltheories =... 40. 96-99 | Saba, W.I., geology ........ 23 
Mound-builders ......... 121-122 | Safety of kerosene oil. .... 137-143 
Natrolite from Weehawken, N.J.130| Salem witchcraft excitement, 
Nevada, mining in ......... 7 150-153 
puUmee-tiths 6 oye. 51/Salmon fishery on Salmon 
sulphur deposits... 172-175 HIVER ee Coes ak 6 
New York, drift hills....... 77-80 | Sandstone in Northern Tex- 
glaciation... ...... 24-31, 57 ASeee ea 15-19 
gold: deposiigeeg. 92. ...: 1| Sapphire from Ceylon. 129 
New York Island, glaciation.. 30] Sap-sand in maple juice...... 168 
Laurentian age......... 57 | Scranton, Penn., peat....... 71-76 
North Carolina, emeralds. ro1—1o5 | Serpentine ................ 57-58 
fluid- bearing quartz crys- Shale in Northern Texas....15-19 
TES cs inca 2 «teres 131-136 | Shell implements........ I2I, 147 
stone implement........ 85 ! Silver in Lake copper......... 4 
