TABLE OF CONTENTS 1933
|
| March | Whole #27 | 8:1 |
| Title | Author | Start Page |
| The story of opal | G. Frederick Sheperd | 1 |
| Opals in the United States museum | William W. Foshag | 9 |
| The geology of opal | Gilbert Hart | 10 |
| The opals of the Morgan gem collection | Herbert P. Whitlock | 12 |
| Opals in the mineralogical collection of the British Museum | L. J. Spencer | 14 |
| The T. C. Wollaston collection of opals | Thomas W. Fluhr | 15 |
| Opals in Virgin Valley, Nevada | H. C. Dake | 16 |
| In quest of the opal | H. T. Strong | 19 |
| Color play in opal | H. E. Briggs | 22 |
| The opal | Eugene W. Blank | 24 |
| Diatomaceous earth. Its nature, occurrence and use | John Melhase | 27 |
| Opal from the Columbia River Plateau basalt flows of Washington, Idaho and Oregon | C. O. Fernquist and H. C. Dake | 30 |
| Prospecting for opal | 33 | |
| Opal mining in Australia | P. Ormsbey Lennon | 34 |
| Occurrences of opal in California | W. Scott Lewis | 36 |
| Opal in Peekskill, N. Y. | Peter Zodac | 38 |
| The amateur lapidary: Opal polishing | J. H. Howard | 41 |
| Opal glossary | G. Frederick Shepherd | 43 |
| Opal bibliography | G. Frederick Shepherd | 51 |
| June | Whole #28 | 8:2 |
| Title | Author | Start Page |
| The Anthony's Nose Pyrrhotite Mine | Peter Zodac | 61 |
| Notes on the Mineral Vermiculite | Ben Hur Wilson | 77 |
| Geology at A Century of Progress | G. Frederick Shepherd | 78 |
| Hobby Values | Eugene W. Blank | 80 |
| Should Mineralogy be Taught in the Public Schools? | 81 | |
| The Romance of Portland Stone | H. A. J. Lamb | 88 |
| The Gem Department | Gilbert Hart | 91 |
| Research Reports on Precious Stones-Zircon | George O. Wild | 91 |
| Bohemian Garnets | Charles R. Toothaker | 93 |
| Diamond (Poem) | E. F. G. | 93 |
| Mineral Postmarks | Alvan Barrus | 91 |
| Field Museum Notes and News Items | 96 | |
| The Amateur Lapidary Condition and Use of Tin Lap | J. H. Howard | 98 |
| American Pathfinders - Fremont | William C. McKinley | 100 |
| Club and Society Notes | 103 | |
| Great Boulders of the World | 106 | |
| Bibliographical Notes | 107 | |
| Dealers and Manufacturers Department | 108 | |
| First National Outing | Ad10 | |
| September | Whole #29 | 8:3 |
| Title | Author | Start Page |
| Mineralogy Club Programs for Use in the 'Secondary Schools' | Ben Hur Wilson | 109 |
| A Visit to the Lithia and Plainfield, Mass. Localities | Betty Veleyn Browne | 115 |
| Science and Its Literature | Eugene F. Blank | 117 |
| Rocks and Minerals Association First National Outing | 119 | |
| The Gem Department | Gilbert Hart | 126 |
| The Optics of Brilliant Cut Gems | J. H. Howard | 126 |
| The Amateur Lapidary | J. H. Howard | 132 |
| Remarks by a Beginner | Arthur Knapp | 132 |
| Method of Polishing Topaz | J. H. Howard | 133 |
| Directory of Active Amateur Lapidaries | 133 | |
| Carborundum Saws | J. H. Howard | 137 |
| Field Museum Notes and News Items | 134 | |
| Our Junior Club | Ilsien Nathalie Gaylord | 138 |
| Dealers and Manufacturers Department | 139 | |
| Club and Society Notes | 140 | |
| Comment and Criticism | 143 | |
| December | Whole #30 | 8:4 |
| Title | Author | Start Page |
| Luminescence of Fluorite from Clay Center, Ohio | E. Mitchell Gunnell | 145 |
| Mineralogy Club programs for Use in the 'Secondary Schools' | Ben Hur Wilson | 147 |
| The Amateur Lapidary | J. H. Howard | 150 |
| From Gums to Jewelry | Arthur Knapp | 150 |
| Directory of Active Amateur Lapidaries | 151 | |
| Rocks and Minerals Association First National Outing | 151 | |
| Field Museum Notes and News Items | 152 | |
| Club and Society Notes | 153 | |
| Mineralogical Society of Southern California | 153 | |
| Newark Mineralogical Society | 153 | |
| Our Junior Club | Ilsien Nathalie Gaylord | 154 |