120105. Swenson, L. E.   Guide to the Waterfowl of Colorado.   University of Colorado Museum, Boulder, Colorado, 1947, Leaflet, Number 4 : 20 pages with illustrations.   Softbound, removed from larger volume, good plus condition.   Original publication, not a modern reprint.   $8.00

120100. Swenson, L. E.   Guide to the Upland Game Birds of Colorado.   University of Colorado Museum, Boulder, Colorado, 1952, , 15 pages with 22 figures.   Softbound, previous owners name, text in very good condition.   Uncertain publication date.   $8.00

120099. Swenson, L. E.   Guide to the Upland Game Birds of Colorado.   University of Colorado Museum, Boulder, Colorado, 1952, Leaflet, Number 9 : 15 pages with 22 figures.   Softbound, removed from larger volume, good plus condition.   Original publication, not a modern reprint.   $5.00

43840. Rodeck, H. G.   Guide to the Mammals of Colorado.   University of Colorado Museum, Boulder, Colorado, 1952, University of Colorado Museum Leaflets, Number 10 : pages 1-72 with illustrations.   Softbound, previous owner stamp, text in very good condition.    $8.00

120103. Beidleman, R. G.   Guide to the Winter Birds of Colorado.   University of Colorado Museum, Boulder, Colorado, 1955, Leaflet, Number 12 : 61 pages with 21figures.   Softbound, removed from larger volume, good plus condition.   Original publication, not a modern reprint.   $10.00

8584. Newman, K. R.   Upper Cretaceous-Paleocene Guide Palynomorphs from Northwestern Colorado.   University of Colorado Museum, 1965, Series in Geology, 2 : 1-21, 5 figures and 1 plate.   Printed wraps, minor previous owner marks, usual signs of age and use, text in very good condition.    $11.00