69206. Udden, J. A.   Fossil Ice Crystals: An Instance of the Practical Value of "Pure Science".   Bureau of Economic Geology and Technology, University of Texas, 1918, University of Texas Bulletin, Number 1821 : 8 pages with 10 plates.   Printed wraps, minor signs of use and age, very good condition.    $15.00

133093. Frizzell, D. L.   Handbook of Cretaceous Foraminifera of Texas.   Bureau of Economic Geology, University of Texas, 1954, Report of Investigations, Number 22 : 232 pages with 21 plates.   Hardbound, private library with markings, text in very good condition.   Original Publication, not a modern reprint.   $21.00

2438. Quinn, J. H.   Miocene Equidae of the Texas gulf coastal plain.   University of Texas, Bureau of Economic Geology, 1955, Publication, 5516 : 1-102, 5 figures, 24 tables, and 14 plates.   Printed wraps, sunning along spine, bumped corner and minor foxing, geology department stamps, text very good plus condition.   Important work on Miocene and Pliocene horses of North America.   $34.00

106884. Smith, G. E.   Depositional Systems, San Angelo Formation (Permian), North Texas - Facies Control of Red-Bed Copper Mineralization.   Bureau of Economic Geology, The University of Texas at Austin, 1974, Report of Investigations, Number 80 : 73 pages with 9 plates.   Softbound, previous owners name, very good condition.   Original publication, not a modern reprint.   $15.00

106885. Bein, A. and Land, L. S.   San Andres Carbonates in the Texas Panhandle: Sedimentation and Diagenesis Associated with Magnesium-Calcium-Chloride Brines.   Bureau of Economic Geology, The University of Texas at Austin, 1982, Report of Investigations, Number 121: 48 pages with illustrations.   Softbound, good condition.   Original publication, not a modern reprint.   $8.00