Here you'll find a variety of crocodilian publications for sale, ranging from current books to fairly old publications and reprints. Other herpetological titles are also available. Zoo Book Sales. A highly recommended site for finding both new and used books on crocodiles, alligators and caimans. Books on other species are also available. articles & features:
Laying the First Course. 1  Start at the edge of the wall thatâs most visible, or the edge that butts up against another structure. If your wall goes across a slope, start at the lowest end. 2  Position the first stone in your trench. Make sure the stone is level from front to back and side to side.
1 The Wall-for a cast in place (concrete) retaining wall with a vertical face, installed on no more than a 33 degree slope with a level embankment, at 6' high (including excavation and backfill) the cost will be $12,800.or the purpose of this discussion we will consider the costs of building a retaining wall from cast concrete and at a length of 50 linear feet. We will also take into consideration various heights as well, ranging from six, eight and ten feet.