Part of the Open Source Ecology : Civilization Starter Kit v0.01 The Power Cube is a universal power unit, and it is a module that can be attached to the LifeTrac, Microtrac, Bulldozer, and Open Source Car (OSCar) platforms. As such, any of these platforms can be used as power sources for other devices, such […]

Part of the Open Source Ecology : Civilization Starter Kit v0.01 The basic design for the soil pulverizer is to provide soil digging, pulverizing, loading into the tractor bucket, and dumping into the CEB press in one step. Otherwise, one must use a tractor to dig, followed by pulverizing with a stationary pulverizer, and followed […]

Part of the Open Source Ecology : Civilization Starter Kit v0.01 LifeTrac is a low-cost, multipurpose open source tractor. LifeTrac is a versatile, 4-wheel drive, full-sized, hydraulically-driven, skid-steering tractor of 18-75 hp with optional steel tracks. LifeTrac is intended to be a minimalist but high-performance, lifetime design, design-for-disassembly workhorse and power unit of any land […]

Part of the Open Source Ecology : Civilization Starter Kit v0.01 The OSE CEB press is a vertical press, where soil falls by gravity directly from the hopper into the compression chamber. The main cylinder compresses soil, and the soil loading drawer closes/opens the compression chamber and ejects bricks from the machine.

Mammals from along the Alaska Highway were obtained for the University of Kansas Museum of Natural History in the summers of 1947 and 1948 by Mr. J. R. Alcorn, field representative of the Museum. He and his family visited Alberta, British Columbia, the Yukon Territory and Alaska in an automobile and trailer from June 9, […]

Forming the northeastern border of Mexico, Tamaulipas extends in an elongated, north-south direction from the Temperate into the Torrid Zone and contains faunal elements from both the Nearctic and Neotropical regions. The mammals are less known than those from some of the bordering states; for the most part collecting has been limited to a few […]

The University of Kansas Museum of Natural History received from J. R. Alcorn and Albert A. Alcorn a sizable collection of mammals taken in the summer of 1951 in Alaska. In addition to visiting localities at which they had collected in 1947 and 1948 (see Baker, Univ. Kansas Publ., Mus. Nat. Hist., 5:87-117, 1951) the […]

This paper presents the results of a study of the mammals of the San Gabriel Mountains of southern California, and supplements the more extensive reports on the biota of the San Bernardino Mountains by Grinnell (1908), on the fauna of the San Jacinto Range by Grinnell and Swarth (1913), and on the biota of the […]

A person standing on the North Rim of the Mesa Verde in southwestern Colorado sees a vast green plain sloping away to the south. The plain drops 2000 feet in ten miles. On a clear evening, before the sun reaches the horizon, the rays of the sun are reflected from great sandstone cliffs forming the […]

The Grand Mesa of Colorado is a westward extension of the mountains of central Colorado, standing more than five thousand feet above the valleys of the Colorado and the Gunnison rivers. To certain montane mammals the mesa is a peninsula of cool, moist, forest surrounded by inhospitable, hot, dry, barren lowland. Few mammals previously have […]