INDEX. 
A. 
Abbe, Prof. Cleveland, suggestions of, 276. 
Achard, pyrometer of, 27. 
Acoustic pyrometry, 47. 
Air thermometer, displacement form, 165. 
stand of, 167. 
porcelain bulbs of, 171, 188. 
graded volume tube for, 210. 
of constant volume, formulas for, 188, 190. 
experimental data for, 198. 
constant volume form, 208. 
Air thermometer at constant pressure, formulas 
for, 210. 
compensator for, 215. 
manipulation of, 216. 
data for, 217-227. 
graphic digest for, 227. 
errors of formulae, 214. 
errors discussed, 227. 
advantages of, 237. 
Air thermometry, displacement methods of, 36, 
165. 
errors of, 195. 
accuracy of, 231, 232. 
Alloys dilute, thermo-electrics of, 82. 
fusion of, 128. 
Alloys, platinum, resistance of, 131, 145, 149. 
thermo-electrics of, 135, 146. 
temperature, coefficient of, 139, 149. 
density of, 128,145. 
electrics of, 143. 
electrical constants of, 151. 
Amagat, high-pressure work of, 33. 
Amonton, gas thermometer of, 27. 
Anomalies, thermo-electric tests for, 80. 
thermo-electrics of platinum iridium alloy, 
49, 83, 116. 
Antimony, boiling point, data for, 117, 124. 
Apparent viscosity and pressure, 304. 
Apparatus for Boiling points (see Boiling points), 
small forms, 84. 
Apparatus, disposition of, for thermo-electric 
work, 97. 
for constant pressure air thermometry, 209. 
for transpiration described, 242. 
for viscosity of gases, disposition of, 243. 
Appert Freres, hard glass of, 35, 89. 
Appolt, fusion pyrometers of, 39. 
Argand lamp, temperatures of, 250. 
air bath of, 250. 
Assay furnace, made by Buffalo Dental Com- 
pany, 180. 
Avenarius, thermo-electric, formula of, 49. 
B. 
Barus, Mrs. Anna H., air thermometer, meas- 
urement of, 203. 
Bayeux, porcelain of, 21, 31. 
Becker G. F., aids research, 17. 
Becker suggests volatilization work on cinna- 
bar, 121. 
Beckert on the graphite pyrometer, 27. 
Becquerel, pyrometric work of, 23, 24. 
air thermometry of, 29. 
measures boiling point of zinc, 35, 235. 
radiation pyrometer of, 43. 
thermo-electric pyrometry of, 48. 
Beets, dry cells of, 99, 100. 
Bell jar, for pressures in transpiration work, 302 
Benoit, resistance, measurements of, 26, 51, 161. 
Berliner, on disintegration of platinum, 276. 
Berthelot, studies dissociation of iodine, 30. 
air thermometer of, 32. 
on expansion of gases, 248. 
Bezold, radiation work of, 44. 
Bismuth, boiling point, data for, 117, 123. 
Blower, Root pattern, 182. 
Bock, expansion pyrometer of, 27. 
Boiling points of metals under low presure, 22. 
at low temperatures, 95. 
Boiling points at low pressures, by Crafts, 121. 
of zinc, measured, 233, 235. 
tables, 40. 
Boiling-point apparatus for low temperatures, 
58. 
large forms of, described, 58. 
for mean temperatures, 59. 
for aniline, etc., 60. 
for mercury, 61. 
for cadmium and zinc, 62. 
Boiling crucible, original form of, 90. 
perfected form of, 91. 
with open tube, 93. 
for pressure work, 93. 
Boiling tubes, original forms of, 84. 
perfected forms of, 86. 
Boiling tube for annealing long wires, 88. 
for pressure work, 88. 
Bolz, C. H., book of, on pyrometry. 22. 
Borda, expansion thermometer of, 26. 
Bouger, dilatation, thermometer of, 25. 
Bradbury, ealorimetric pyrometer of, 41. 
Browne, pyrometers mentioned by, 23. 
Brown, circulating water pyrometer, 43. 
Brocking, chronometer of, 251. 
Buchanan, resistance of gases at high tempera- 
ture, 52. 
307 
