ROCKS AND MINERALS TABLE OF CONTENTS 1931

TABLE OF CONTENTS 1931

March	Whole #19	6:1
Title	Author	Start Page
Osmiridium Mining in Tasmania	P. Ormsby Lennon	1
Attention of Mineral Collectors		7
Beryllium in Maine	Prof. Freeman F.Burr	8
Mineral Localities Information Department		9
The Geology of the Hutchinson Valley Sanitary Sewer Tunnel	Thomas W. Fluhr	10
Are the Colors of Precious Stones Due to Colloids?	George O. Wild	14
Micro Mineral Collecting-An Appeal!	Ernest M. Skea	15
Field Museum Notes and News Items		16
The Pegmatites near Gilsum, N. H.	David Modell	18
Gems of the Southwest - Malachite	Nell Lounsberry	23
A Mineralogical Occurrence of Iron Tannate	J. D. Laudermilk	24
The Old Friedensville Zinc Mines	Eugene W. Blank	26
World's Deepest Producing Oil and Gas Well		27
Interesting Localities and How to Reach Them - Devils Den	Elizabeth A. Daniels	28
Donations to Rocks and Minerals during 1930		29
Bureau of Mines Notes and News Items		30
The Gem Department - Gem Varieties of Tourmaline	Gilbert Hart	32
Our Junior Collectors		34
The Sluice Box	A Riffle	35
A Compilation of Gem Names	Gilbert Hart	36
Bibliographical Notes		38
The Rocks and Minerals Association		39
Comment and Criticism		39
With Our Members		40
Mineral Exhibit at Julia Potwin Library		40
The President's Page-Mineralogical Clubs	Dr. H. C. Dake	41
Membership Department		42
General Index of Authors and Contents		44


June	Whole #20	6:2
Title	Author	Start Page
On Collecting Sands	Harold Orville Whitnall	45
The Passing of a Noted Mineralogist - Albert C. Bates		51
Famous 'Rolling Rock' Saved from Destruction	James G. Manchester	52
The Malachite of White Plains, N. Y.	Thomas W. Fluhr	54
Exchange of Mineral Specimens	O. F. Pfordte	55
Are the 'Good Old Days of Mineral Collecting' Gone?	Morrell G. Biernbaum	56
Some Notes on Gems, More Particularly Those of Madagascar	W. E. Howarth	59
Field Museum Notes and News Items		60
The Great Southwest and Its Minerals	Edmund H. Cienkowski	71
The Gem Department. Prospecting for Gems	Gilbert Hart	73
Silver Producing Mines of British Columbia	V. I. Eardley-Wilmot	76
Our Junior Collectors		78
Free Minerals for Young Collector		79
Interesting Localities and How to Reach Them - An Interesting Occurrence of Fossil Fish	Edward C. Foster	80
The Fossil Banks of Chestertown	John G. Lyman	80
A Compilation of Gem Names - Last Installment	Gilbert Hart	81
Mineral Localities Information Department		83
Bibliographical Notes		84
The Sluice Box	A. Riffle	85
The Rocks and Minerals Association		86
Membership Department		86


September	Whole #21	6:3
Title	Author	Start Page
Our Fifth Anniversary-A Brief Review		89
Igneous Rocks and Associated Mineral Deposits of southeastern Illinois	Don L. Carroll	92
A Unique Occurrence of Limonite after Wood	Louis Reamer	97
The Golden Granite near Peekskill	Thomas W. Fluhr	98
The Geode Field in Indiana	Harry W. Mauntel	100
Molybdenite and Chalcopyrite near White Plains, N. Y.	Mary Walleck Garretson	101
An Occurrence of Geodes In Situ	L. E. Oneto	101
The Irish Turf Industry	Ormsby Lennon	102
Neptune and an Architect	Marian MacLean Finney	108
Wind-Faceted Pebbles given to Museum		111
Hunting Beach Agates	J. M. Tracy	112
The Gem Mines and the Wegener Continental Shift Theory	George O. Wild	113
The Metropolitan Mineral Area of New York City	James G. Manchester	114
A Brief History of Volcanology	Eugene W. Blank	126
Pebbles	Frederick Shepherd	130
Mineral Localities Information Department		131
A trip to South Death Valley Nitrate Fields	Scott Lewis	132
The Sluice Box	A. Riffle	133
Death Valley Days		134
Field Museum Notes and News Items		136
The Amateur Lapidary	J. M. Howard	138
Club and Society Notes		140
Interesting localities and how to reach them		142
Gems of the Southwest - Serpentine	Nell Lounsberry	143
Our Junior Collectors	Fred Low	144
Bibliographical Note		145
Rocks and Minerals Association and Membership Department		146
The President's page		148


December	Whole #22	5:4
Title	Author	Start Page
The Preparation of Micro Mounts	T. C. Wills	149
The Significance of Van Hise Rock	Frederick Shepherd	172
We Want Your Vote		175
Field Museum Notes and News Items		176
Dust Explosions	Eugene W. Blank	177
A Unique Picture in Stone		179
Mineral Localities Information Department		179
Interesting Localities and Hour to Reach Them - The Yuma Mine		180
Club and Society Notes		181
The Amateur Lapidary	J. H. Howard	182
Our Junior Collectors - Philip Miller		184
Bibliographical Notes		185
The Rocks and Minerals Association		186
Membership Department		186
The Sluice Box		188

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