The American Journal of Science, Volumes 195-196

Front Cover
J.D. & E.S. Dana, 1918 - Science
 

Contents

PRACTICAL PYROMETRY By Ervin S Ferry Glenn A Shook
75
Conclusions
76
GeologyStructure of the Himalayas and of the Gangetic Plain as eluci
78
The Coralreef Problem and the Evidence of
81
The Estimation of Phosphorous Hypophosphoric
91
The Rate of Hydrolysis and Electrical Conductivity
103
On the Occurrence of Ilvaite in the South Mountain
118
Table of the invertebrates found in the San Jorge at different
119
The Silurian Arisaig Series of Arisaig Nova Scotia
126
SCIENTIFIC INTELLIGENCE
140
Geology Geology of the Navajo Country a Reconnaissance of Parts
148
Established by BENJAMIN SILLIMAN ir 1818
152
An Example of the Possible Intricacy of Glacial
153
The Moisture Content of some Typical Coals
174
The Formation of Dolomite and its Bearing on
185
On the Etching Figures of the Dihexagonal Alternat
201
The Occurrence of Cristobalite in California by A
222
The Oxidimetric Determination of Thorium precipi
242
StressStrain Relations in Crystalline Cylinders
269
Influence of a Series Spark on the Direct Current
281
The Ternary System MgOAlOSiO by G
301
Abbé Réné Just Haüy with portrait frontispiece
326
Chemistry and PhysicsSolubility of Pure Radium Sulphate S C LIND
336
Fossil Footprints from the Grand Canyon
337
On the Carboniferous of the Grand Canyon
347
The Cambrian of the Grand Canyon of Arizona
362
The Gravimetric and Volumetric Determination
370
Eruptive Rocks at Cuttingsville Vermont by J
377
The Formation of Missouri Cherts by R S DEAN 411
424
An Unusual Mastodon by F B LoOMIS
438
A Restoration of Neocalamites by E W BERRY
445
A Large Parasuchian from the Triassic of Pennsyl
457
Augite from Stromboli by S Kozu and H
463
SCIENTIFIC INTELLIGENCE
470
On the Occurrence of Ilvaite in the South Mountain
489
Chemistry and PhysicsUse of Metallic Silver as a Reducing Agent in
492
The Problem of the CretaceousTertiary Boundary
1
Historical Geology
45
Miscellaneous Scientific IntelligenceReport of the Secretary of the Smith
151
A Century of Government Geological Surveys
171
The Development of Vertebrate Paleontology
193
The Rise of Petrology as a Science by Louis V
222
The Growth of Mineralogy from 1818 to 1918
240
VIIIA The Work of the Geophysical Laboratory of
255
A Centurys Progress in Physics by LEIGH PAGE 308
308
A Century of Zoology in America by WESLEY R COE 355
355
The Development of Botany as shown in this Journal
399
The Melting Points of Cristobalite and Tridy
417
The Application of Rapidly Rotating Metallic
427
Notes on the Geology of Rhode Island by A C
437
A Possible Source of Vanadium in Sedimentary
473
a textbook for students of Botany
479
A TEXTBOOK OF GEOLOGY For Use in Universities Colleges
550
The Green River Desert Section Utah
551
The Law of Dissipation of Motion by E JONSON
578
On the Preparation of Hypophosphates by R
587
Dust fall of March 9 1918 by A N WINCHELL
599
Note on a Universal Switch for Delicate Potential
610
Measurements by W P WHITE
620
Miscellaneous Scientific IntelligenceJournal of the Ceramic Society 619
620
FREE EXAMINATIONNO CASH IN ADVANCE
620
Radioactive Properties of the Mineral Springs
621
Spotted Lakes of Epsomite in Washington
638
XXXIIA Study of Some American Fossil Cycads Part
645
Means of Solving Crystal Problems by J M
651
Separation of Germanium from Arsenic by
663
GROVE KARL GILBERT
669
HENRY SHALER WILLIAMS
682
SCIENTIFIC INTELLIGENCE
688
Chemistry and PhysicsA New Method for the Quantitative Estimation
692
The Origin of Serpentine a Historical
693
Stratigraphy and Correlation of the Devo
732
RICHARD RATHBUN and His Contributions to Zoology
757
SCIENTIFIC INTELLIGENCE
764
GeologyMaryland Geological Survey E B MATHEWS 768 San Lorenzo
771

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Page 368 - PRINCIPLES OF ZOOLOGY; Touching the Structure, Development, Distribution, and Natural Arrangement, of the RACES OF ANIMALS, living and extinct, with numerous Illustrations. For the use of Schools and Colleges.
Page 189 - Survey, and the classification of the public lands and examination of the Geological Structure, mineral resources and products of the national domain...
Page 179 - The public surveys shall extend over all mineral lands ; and all subdividing of surveyed lands into lots less than one hundred and sixty acres may be done by county and local surveyors at the expense of claimants ; but nothing in this section contained shall require the survey of waste or useless lands.
Page 98 - WILL, while we have no knowledge of any other primary cause of force, it does not seem an improbable conclusion that all force may be will-force ; and thus, that the whole universe is not merely dependent on, but actually is, the WILL of higher intelligences or of one Supreme Intelligence.
Page 120 - ... this whole mass converted by earthquake pulsations of the breadth which such undulations have, into a series of stupendous and rapid-moving waves of translation, helped on by the still more rapid flexures of the floor over which they move, and then advert to the shattering...
Page 310 - I was however much surprised to see the needle suddenly deflected from a state of rest to about 20° to the east, or in a contrary direction when the battery was withdrawn from the acid, and again deflected to the west when it was re-immersed.
Page 120 - ... power of the tremendous jar of the earthquake, we shall have an agent adequate in every way to produce the results we see, to float the northern ice from its moorings, to rip off, assisted with its aid, the outcrops of the hardest strata, to grind up and strew wide their fragments, to scour down the whole rocky floor, and, gathering energy with resistance, to sweep up the slopes and over the highest mountains.
Page 113 - We may consider the level of the sea to be a grand base level, below which the dry lands cannot be eroded; but we may also have, for local and temporary purposes, other base levels of erosion, which are the levels of the beds of the principal streams which carry away the products of erosion.
Page 115 - ... the vallies between them ; their entire difference, in many cases, from the rocks in the country where they lie — • rounded masses and pebbles of primitive rocks being deposited in secondary and alluvial regions, and vice versa; these and a multitude of similar facts have ever struck us as being among the most interesting of geological occurrences, and as being very inadequately accounted for by existing theories."* At a later date Silliman published a letter signed
Page 314 - It is impossible for a self-acting machine, unaided by any external agency, to convey heat from one body to another at a higher temperature ; or heat cannot of itself (that is, without compensation) pass from a colder to a warmer body.

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