Wikimedi'Òc

Proceedings of the United States National Museum, Volume 76.djvu - Enomil

Smithsonian miscellaneous collections (IA smithsonianmisce641916smit).pdf - Fæ

The American journal of science (IA americanjourna4281909newh).pdf - Fæ

The American journal of science (IA americanjourna4491920newh).pdf - Fæ

Bulletin of the scientific laboratories of Denison University (IA bulletino192019191924deni).pdf - Fæ

Bulletin of the Geological Society of America (IA bulletinofgeolo221911geol).pdf - Fæ

Bulletins of American paleontology (IA bulletinsofameri225230pale).pdf - Fæ

Bulletins of American paleontology (IA bulletinsofameri288290pale).pdf - Fæ

The Journal of geology (IA journalofgeology151907univ).pdf - Fæ

The Proceedings of the Iowa Academy of Science (IA proceedingsofio291922iowa).pdf - Fæ

Minerals in Arkansas, including a review of oil and gas conditions (IA mineralsinarkans00arkarich).pdf - Fæ

The Ohio journal of science (IA ohiojournalofsci21ohio).pdf - Fæ

Outlines of the geology, soils and minerals of the state of Arkansas (IA outlinesofgeolog00arkarich).pdf - Fæ

Portland-cement resources of Illinois (IA portlandcementre00bleirich).pdf - Fæ