523 MONTHLY WEATEIER REVlEW. NOVEMBER, 1903
Debrowolski, A. Quelques id6es sur la forme et sur la structure
Debrowolski, A. Quelques icl6es sur la forme et sur la structure
- La perturbation magnktique du 31 octohre. [Note.] Pp. 465-
des cristaux de neige.
des cristaux de neige.
468.
Pp. 427-438.
Pp. 449-459.
Comptes Rendua de I’Acdmie &a Sciences. Paria. Tome 197. Guillaume, Ch. Ed. Remarques bur la note de M. P. Ditisheim, relative l’action de la pression atmosph6rique sur la marche cles
chronombtres. Pp. 703-705.
Moureaux, Th. Sur la perturbation magn6tique clu 31 octohre
1903. Pp. 705-706.
Qubnisset, F. Remarques sur le dernier groupe de taches solaires et les perturbations magnetiques. Pp. 747-748.
Marchand, &m. Quelilues remarques sur la perturbatiou iuag-
n6tique du 31 octobre 1903.
Deslandres, H. Relation entre les taches solaires et le mag- netisme terrestre. Utilit6 de l’enregistrenient continu des Pl6mtwts
variables du soleil. Pp. 821-827.
Guillaume, J. Ledernier minimum des taches du soleil et re-
marques au sujet de la loi tles zones.
Raulin, V. Sur les observations pluvioinetriques en Australie de 1881 8, 1900. Pp. 149-176.
Coeurdevache, P. Frkquence des jours d’orage dans les Pyrbnees Orientales. Pp. 179-180.
Lahille, A. Le cyclone du 8-9 aodt Ala Martinique. Pp. 180-183.
Quenisset, F. Grande tache solaire. Pp. 330-331.
Qubnisset, F. Le soleil et les perturbances magnetiqne. P. 350.
Annah de Chimw et de Physiqra. Puria. 7me sJriea. Tome 30.
Curie, Sklodowska (Mme. ) Recherches sur leb substanceh ra-
Vaulx, H. de La.
Pp. 789-792.
Pp. 808-900.
Annuaire de la SociftC M4tJorologigrce de France. Paris. 61me unnce.
La Nature. Paria. Slme Annee.
dio-actives. P~J. 259-326.
Aerophile. Paris. l l n i e annka. De Paris au conit6 cl’York (Angleterre); It?
voyage du Djinn e t la th6orie du general Meusnier; journal de
bord du Djiun. Pp. 232-239.
Bulletin de la Soei& Bdge d’ Aatronottiie. B~uellea. 7me unnce.
Vincent, J. La mGt6orologie jugbe par un astrononie. Pp. 334-338.
Archittea des Sciences Phyaiqicee et Nuturelk8. Genhe. 4me pr‘riode. Tome lo‘.
- Observations met6orologiques faites aus fortificationh de Saint-
Maurice pendant les mois de dGcerubre, 1902, janvier et fkvrier,
1903 (hiver 1903). Pp. 435-442.
Stark, J. Die Eigenschaften des Glimnistromes in freier Luft. PI?.
7 15-7 17.
Lecher, E. Ueber die Anwendung des elektrodenlosen Ringstromes zur Widerstandsmessung verdunnter Luft.
Annalen der Physik. Leipzig. Vierte Folge. Bund 12.
Toepler, M. Ueber Beobachtungen von kurz daueruden Luft-
druckschwankungeu (Windwogen.) Pp. 787-804.
Mitteilungen von Forschungsreiseniien und Gebhrten n w den Deutachen
Schutzgebieten. Berlin. Bund 16.
- Resultate der Regenmessungen in Tafle am Agu.
- Resultate der meteorologischen Beobachtungen in Rwakopmunrl ini Jahre 1902. Pp. 216-217.
- Meteorologische Beobachtungen aus clen deutschm Schutzge-
bieten der Sudsee fur das Jahr 190a.
Annalen der Hydrographit und Maritinten Meteurologie. Berlin. IS0 Jahr-
sang.
- Wetterkarten vom Nordatlantisclien Ozean fur den 1. liis In.
April 1903. Pp. 473-474.
- Die Staulifiille vom 19. bis 23. Februar 1903 uber dem Nordatlan-
tischen Ozean, Grossbritaunien und Mitteleuropa.
BBrgen, C. Ableitung der harmonischen Konstanten cler Gezeiten
a u s drei taglichen Wasserstands - Ablesungen zu bestimmten
Stunden, nehst Bearbeitung dreijtihriger Beohachtangen zu Ka-
Phyaikalische Zeitachrift. Leipzig. 4 Jahrgang.
Pp. 811-814.
P. 205.
Pp. 231-240.
Pp. 675-483.
merun. Pp. 483-492.
Das Weltall. Berlin. 4 Jahrgang.
Archenhold. F. 5. Sonnenflecken, Erdstrijme uncl Norcllicliter.
Pp. 71-75.
91-96 Krebs, Wilhelm. Die Gezeitenbewegungen cler Atmosphbre. Pp.
Das Wetter. Berlin. -XI Jahrgamg.
Schulze, Paul. Resultate ails den meteorologischen Beobachtungen
in Meitzen von 1855-1902.
Ziegra, Alfred.,, Uutersuchungen der ‘‘ Nachtfrostprognose narli Kammermann fur mehrere meteorologiache Stationeii Nurd-und
Mitteldeutschlands. Pp. 250456.
Schiefer-Mahlburg, Eduard von. Ueber atmosphbrische Stauh-
fiille. Pp. 258-263.
Trabert, W. Die Theorie der tiiglichen Luftdruckscliwankung
von Margules und die tiigliche Oszillation der Luftmassen. Pp. 481-501.
Pp. 241-250.
Meteorolog&c?w Zeit8chri;ft. Wien. Band BJ.
Hann, J. Ueber eine cloppelte tlgliche Periode der Windkompon-
Sapper, Karl. Meteorologische Beobachtungen. angestellt in der
Hann, J. J. R. Sutton: Esperimente uber Verdunstung. Pp. 517-
Sassenfeld, Max. Zur Hbufigkeit der Halophbnompue. Pp. 518-
- Der Bisliopsche Ring. Pp. 510-520.
Hann, J. Regenbogen im Nebel auf Clem Bodensee. Pp. 520-521.
Handel;Mazzetti, Eduard von. Zur Hiiufigkeit des Nebel- bildes. Pp. 521-5YZ.
H[ann], J[ulius]. K. Hetz: Ueber die Gewitter in der Schweiz.
- IIeteorologische Beobachtungen zu Banani, Insel Pemba, Ost-
Afrilia. P. 533.
Kassner, C. Strenge und schneereiche Winter in Nordamerika nach Intliauerberichteu. Pp; 523-525.
Wolfer, A. Provisorische honnenfleclieu-Relatirzahlen fur das
111. Quartal 19113. P. 525.
~
Eduard Mazelle: Ueber die niiliroseismische Pen(le1nnruhe uucl
ihren Zusainuenliang iuit Wind und Luftdruck.
Boletin del Iiistitufo CieniiJco y Liferario ‘‘ Porfirio Diut.” Toluea. Tom0 6.
Pp.
enten auf den Berggipfeln.
Republik Guatemala im Jahre 1901. Pp. 51S516.
518.
519.
Pp. 501-513.
Pp. 5‘22-523.
Pp. 525-527.
- Prograiiia del curso de fisica y nocioiies cle nieteorologia. 238-240.
Boletin Aaricola. Areoniva. Tonio ?.
M., M. V. ~y n ~i d s general de 10s meses de estio clel ajjo 1902-
Berthoud, Paul. hIeteorologia de Loureny 1II:trrlnes. Pp. 269-
1903. PI). i o 8 -m
Boletirn du Soeiedude de Geogruphia de Lisbon. Lisbou. 21 Sfrie.
271.
ULOUDS ON THE CUCAMONGA MOUNTAINS.’
By Mr. 0. R. EOUNTIIWAITE, dated .4vnloo, Saiits Cntalina Island.
I am sending you solio prints of the storm on the Cucamonga
Mountains, also a solio psint of the same mountains taken on
the following morning. The panoramic view of the mountains
(figs. 1 and 2) was t,aken about 4 1). m. with the rear combina-
tion of a rapid rectilinear lens and a Bausch and Lomb color
screen, or ray filter, a t an elevation of 925 feet above sea level
and a t a distance of about 35 miles from the mountains. The
summit of Cucamonga Peak is about 9800 feet above sea level.
The trees in the foreground are orange trees on the Arlington
Heights district of Riverside. The following points are in-
dicated by numbers on the print:
The wind coming
over t,he mountains and through C’ajon Pass is so strong that
the sand is raised in the air thick enough to obliterate the
view of the mountains beyond. Railroacls have much trouble
with the sand blowing into the cuts, and they guard against i t
by fences similar to the snow fences in the north. The hills
in the mid-distance seem to concentrate the wind over these
flats. There is now an immense vineyard planted in this dis-
trict.
2, 2. The month of San Antonio Canyon and the higher
citrus lands of Ontario Colony a t the head of Euclid avenue.
3, 3. The citrus colony a t Iomosa, which gets its water from
the stream in Cucamonga Canyon.
4, 4. Northrup and Hurcl’s ranch, where oranges, lemons,
plums, peaches, prunes, and olives are raised; the water sup-
ply comes from a tunnel into the mountains.
5, 5. De Mense, a citrus orchard of 40 acres; this also has a
private water right through a tunnel into the mountains.
9, 9. Cajon Pass. Notice the cigar-shaped cloud crossing
behind the tsees. I have been a t point 4, 4 and distinctly
heard the roar of trains coming and going in this pass.
1, 1. Sand flats of southeast Ontario.
Prof. Alexander G. AIoAdie formardb tu the Monthly Weather Review
a letter from Mr. C;. R. Rounthnaite, dated Avalon, Santa Catalina Island,
off the coast of wuthern California, l i u t relating to some photographs of
the Cucanionya Mountains, taken froiii Arlington Heights, latitude 330
55’ north. longitude 117O 25’ west, and looking nearly clue north. The Cuuainonga Mouutains lie between the observer and tlie Cajon Pass be-
tween the Sail Gdwiel Bange and the Snn Bornadino Range; one branch
of the Southern California Railroacl passes through Cajon Pass.
We reproduce Mr. Rounthwaitds beautiful photographs in figs. 1, 2,
and 3.
NOVEMBER, 1903. MONTHLY WEATHER REVIEW. 623
2
1
3
I
7
FIG. 1.-Left-hand poeion of panoramic view of a storm on the Cucamonga Mountains. 1 ,l . Sand flats of southeast Ontario. 2, 2. The mouth of San Antonio Canyon. 3, 3. The citrus qolonyat Iomosa. 4, 4. Northrup and Hurd's Ranch. 5, 5. DeMense, a citrus orchard. 6, 6. Ontario Peak. 7, 7. Cucamonga Peak. 8, 8. Mr. J. D. Carscaden's residence on Arlington Heights, Riverside,
12 - 11 Y
FIG. a.-Right-hand I -:ion of panoi--..c view of a storm on the Cucamonga Mountains. 9, 9. Cajon Pass; Sante Fe and
Salt Lake railways enter southern California through this pass. 10, 10. Hills in West Riverside District, about mid- way between the mountain and the location of the camera. 11, 11. Residence of Mr. J. H. Thompson. 12, 12. South Adams street, Arlington Heights, Riverside.
MONTHLY WEATHER REVIEW.
F I ~. 3.-Generul view of Old Baldy and Cu&-,nga Mountains looking toward north-northeast. 13,13. The round head of Old
Baldy at the head of San Antonio Canyon. 14, 14. The summit of the highest peak, Cucamonga.
In the single view, fig. 3, also taken with the same rear com-
bination and ray filter, the following points will be noticed:
13,13. The round head of Old Baldy, at the head of San
Antonio Canyon, which is 15 miles beyond the head of Cuca-
,monga Canyon.
14, 14. The summit of the highest peak, Cucamonga.
Fig. 3 was taken about 7 a. m. and shows with what
rapidity the storm clouds of three days previous have been
swept from the sky by the north wind. We expect danger
from the frosts in the citrus orchards succeeding a day of such
clear, cold weather on the mountains, but in nearly all cases
the frost is happily averted by a slight wind, and the ther-
mometer goes to its lowest point during the hour before sun-
rise, dropping say from 36O to 26’ in an hour, and rising again
after the sun comes up. These north winds are charged with
electricity, which visibly affects the hair in the manes and tails
of horses, and causes an exceeding irritability and depressing
headache in some human beings. These conditions generally
exist for a period of three days, and although the wind blows
hard it rarely causes much damage to trees or fruit in the
orchards.
THE EABTHQUAKE OF DECJEMBm 6,1903, AT WASH-
INGTON, D. C.
By Prof. Charles F. Marvin.
The seismograph of the Weather Bureau recorded a slight
earthquake from a very distant origin on the night of Decem-
ber 4-5, 1903. The apparatus by which this record was macle
has already been described in the MONTHLY WEATHEB REVIEW
for June, 1903, page 271. The north and south component of
horizontal motion only is recorded.
The rrprincipal portion ” of the earthquake was noticeably
short; the first portion consisting of only two or three waves
of small amplitude, but relatively long periods (fifteen seconds
for the duration of one complete vibration) followed by a sin-
gle, relatively long wave with about the same period, and rep-
resenting a displacement of the ground of about 0.26 of a
millimeter (double amplitude). The period of the pendulum
is 26 seconds, and the magnification 10.
The following table gives the corrected times of the princi-
pal phases of this earthquake:
D m b e r 6, 1903, a. m., ammtyjifth m’dian time.
First preliminary tremor ............................. (r 26 20 a. m.
Second preliminary tremor ........................... 0 32 32 a.m. Duration of flrst preliminary tremor.. ..... 0 6 12 .......... Duration of second preliminary tremor.. ... 0 3 13 .......... Principal portion began .............................. 0 35 45 a. m.
Principal portion ended .............................. 0 36 50 a. m.
Duration of principal portion.. ........... 0 1 15 .......... Duration of end portion.. ................. 0 24 42 .......... End of earthquake.. ................................. 1 1 32a. m.
This is the third earthquake that has been distinctly recorded
at the Weather Bureau since the present seismograph was in-
stalled about the middle of February, 1903.
MOUNT WHITNEY AS A SITE FOR A METEIOROLOGICJAL
OBSERVATORY.
By ALEXANDEB G. MCADIE, Professor of Meteorology.
In reply to a letter dated June 15, 1903, from the Chief of
the Weather Bureau, asking for a report on the advantages
and disadvantages of Mount Whitney as a site for a meteoro-
logical observatory in connection with the proposed astro-
physical observatory, I have the honor to submit the accom-
h. m. 8. h. m. s.