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.
Building Landscape Walls. You'll have to create a path for each landscape wall using wood stakes and a mason's line and cut away excess soil. The first course, or line, of the landscape wall block will nest in a trench that you'll have to dig; it should be at least 2 inches below the soil in front. Line the back face of the excavation and trench with landscape fabric, then add a 1-inch-deep layer of sand for bedding. To ensure drainage, install perforated drainpipe behind the first course of the landscape wall, using soil to create grading and a slight incline.