464 
tChayote, Chayota edulis, 
strain. H. C. 
Horticulture. 
an early fruiting 
SKEELS. 411. 
tChile, fruit-growing and ornamental 
gardening in. W. Popmnon. 412. 
+Citrus fruits of Japan, history and 
creation of new varieties by bud vari- 
ation. T. Tanaka. 189. 
tOrchid seedlings, raising, by use of 
mycorrhizal fungus. D. Lumspen. 
187. 
+Rhododendron seedlings, effect of alu- 
minum sulphate on. F. V. CoviLue. 
237. 
Mathematics. Prime numbers, remarkable 
formula for. P. R. Herz. 150. 
Space and time, reduction of all physi- 
cal dimensions to those of. A. P. 
Martuews. 195. 
Metallurgy. {Structure and constitution 
of alloys. W. Rosenwain. 448. 
Meteorology. tInternational Geodetic and 
Geophysical Union and International 
Astronomical Union, meetings of. 
W. Bowrz. 43. 
Murmur of the forest and the roar of 
the mountain. W.J.Humpureys. 49. 
{+Pressure maps, free-air, and their 
accuracy. C. L. MEIsIncEerR. 333. 
Mineralogy. Argentojarosite, new silver 
mineral. W. T. ScHALLER.: 233. 
See also Petrology. 
Navigation. {Geographical position, find- 
ing of, from observation of: celestial 
bodies. G. W. Lirrtenaues. 215. 
Necrology. §AcknR, Grorce N., 336. 
Cook, F. C., 300. Coox, Ursan J., 
376. Dickins, Epmunp F., 165. 
Fernow, B. E., 236. Fiercuer, 
Avice C., 193. Hrnperson, Joun B., 
48. Hoy, Cuaruns M., 375. Kenpia, 
JosepH, 376. Laur, Logan L., 376. 
Len, SterHen N., 376. Maury, 
THomeson Brooke, 361.. Moruey, 
Epwarp W., 141. Pumprtiy, Ra- 
PHAEL, 361. Woops, Evxiort, 256. 
Optics. Illumination used by engravers 
of steel plates, nature of. J. E. 
Ives. 299. 
Pearls, natural and cultivated, methods 
for distinguishing. F. E. Wrianr. 
1219, 282. 
SUBJECT INDEX 
{Photographic lenses, aberrations of 
anastigmatic. A. H. Bennett. 91. 
tRefraction of glass at high tempera- 
ture, changes in index of. C. G.. 
Peters. 217. . 
Ornithology. +Banding, bird, new method 
of bird study. S. P. Batpwin. 373. 
Nectariniidae, new East Indian. H. C. 
OBERHOLSER. 226. 
Paleontology. {Cats of Rancho La Brea. 
J.C. Merriam. 238. 
Petrology. Melilite, genesis of. N. L. 
Bowen. 1. 
Physical Chemistry. Acidity, relations 
between active, and lime require- 
ment of: soils. E.T. Wuerry. 97. 
Silica, residue from, in rock analysis. 
M. AuroussEAv. 330. 
{Silica, structure and polymorphism 
of. R.B.Sosman. 47. 
{Silver, tarnishing and detarnishing 
of. G. W. Vina and G. N. ScHRAMM. 
139. 
Physics. fAir navigation. J. P. AULT. 
"334, 
Air speed in wind-tunnels, direct 
measurement of. L. J. Brieas. 93. 
Calorimeters, electric heating of. 
W. P. Waits. ‘17. 
{Conductivity, variation of metallic, 
with electrostatic charge. F. WerEN- 
NER, N. Forman, and A. R. Linp- 
BERG. 45. 
§Continuity vs. discontinuity. 
TUCKERMAN. 94, 
Illumination used by engravers of steel 
plates, nature of. J. E.Ives. 299. 
tIsotopes and structure of the atom. 
F. W. Aston. 18. 
Light, measurement of. 
TENDEN. 69. 
Melting-point determinations, heating- 
curve and quenching methods of. 
G. W. Morey. 326. 
tPhotographie lenses, aberrations of 
anastigmatic. A. H. Brenner. 91. 
Ti; doe 
E. C. Crit- 
§Quantum theory, lectures on. 47, 66, 
94,139,300. 
Radiant energy, visibility of. K. 8. 
Gipson and FE. P. T. Tynpatu. 65. 
Refraction of glass at high tempera- 
ture, changes in index of. C. G. 
Prerers. 217. 
