Gems and precious stones of North America. A popular description of their occurrence, value, history, archæology, and of the collections in which they exist, also a chapter on pearls, and on remarkable foreign gems owned in the United States. Illustrated with eight colored plates and numerous minor engravings (1890). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Gems and precious stones of North America. A popular description of their occurrence, value, history, archæology, and of the collections in which they exist, also a chapter on pearls, and on remarkable foreign gems owned in the United States. Illustrated with eight colored plates and numerous minor engravings (1890). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Gems and precious stones of North America. A popular description of their occurrence, value, history, archæology, and of the collections in which they exist, also a chapter on pearls, and on remarkable foreign gems owned in the United States. Illustrated with eight colored plates and numerous minor engravings (1890). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Gems and precious stones of North America. A popular description of their occurrence, value, history, archæology, and of the collections in which they exist, also a chapter on pearls, and on remarkable foreign gems owned in the United States. Illustrated with eight colored plates and numerous minor engravings (1890). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Gems and precious stones of North America. A popular description of their occurrence, value, history, archæology, and of the collections in which they exist, also a chapter on pearls, and on remarkable foreign gems owned in the United States. Illustrated with eight colored plates and numerous minor engravings (1890). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Agate : physical properties and origin, archaeology and folk-lore (1927). Chicago : Field Museum Press. Published in US without visible copyright notice. Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Gem-stones and their distinctive characters (1912). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Gem-stones and their distinctive characters (1912). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Gem-stones and their distinctive characters (1912). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Precious stones considered in their scientific and artistic relations. With a catalogue of the Townshend collection (1905). Scan of 2 d image in the public domain believed to be free to use without restriction in the US.

Lewis Feuchtwanger. A popular treatise on gems : in reference to their scientific value : a guide for the teacher of natural sciences, the jeweller, and amateur : together with a description of the elements of mineralogy, and all ornamental and architectural materials, 1867

From book on how to draw a map if you are a map maker. These are color codes for different geologic strata and the like. Scans of 2 d images in the public domain believed to be free to use without restriction in the US.

From book on how to draw a map if you are a map maker. These are color codes for different geologic strata and the like. Scans of 2 d images in the public domain believed to be free to use without restriction in the US.

From book on how to draw a map if you are a map maker. These are color codes for different geologic strata and the like. Scans of 2 d images in the public domain believed to be free to use without restriction in the US.

From book on how to draw a map if you are a map maker. These are color codes for different geologic strata and the like. Scans of 2 d images in the public domain believed to be free to use without restriction in the US.

Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

A book of precious stones; the identification of gems and gem minerals, and an account of their scientific, commercial, artistic, and historical aspects ([1909]). Julius Wodiska. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

A book of precious stones; the identification of gems and gem minerals, and an account of their scientific, commercial, artistic, and historical aspects ([1909]). Julius Wodiska. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gems and gem minerals (1903). Oliver C. Farrington. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

A book of precious stones; the identification of gems and gem minerals, and an account of their scientific, commercial, artistic, and historical aspects ([1909]). Julius Wodiska. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gem-stones and their distinctive characters ([1912]). Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gem-stones and their distinctive characters ([1912]). Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

A book of precious stones; the identification of gems and gem minerals, and an account of their scientific, commercial, artistic, and historical aspects ([1909]). Julius Wodiska. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Pearls ; their occurrence in the United States, etc. (1900). USGS. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Gem-stones and their distinctive characters ([1912]). Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Leisure hours among the gems (1884). Scan of 2 d images in the public domain believed to be free to use without restriction in the US.

Pearls ; their occurrence in the United States, etc. (1900). USGS. Scan of 2 d images in the public domain believed to be free to use without restriction in the US.