Mayer Phil 1972 Journal Chaco Experimental Station, 295 km NW Villa Hayes on trans Chaco Hwy. Depto. Ple Hayes, Paraguay 22Tue to the surface, resulting in large areas being under a couple of inches of water during the wet season, but drying to a powdery dust during the dry season. This is the start of the dry season so there is fair an't any standing water - more or less permanent puddles anywhere, w/ small pond frequent. The 600 cleared ha are mostly native growth left tall, w/ a few slums & forbs mixed in. The rest of the station is either palm swamp or low woods. We put 18 traps only out (due to the late hour) along the border of a cleared fruit falling field & woods. Many piles of dead branches. Macelli found a very old green frog (Toad?) one km brush in + cleared field - away from water, (as far away as we can get, maybe a few hundred feet). Whitish pastel green some yellow eye rim + lower edge of jaw, tubercles on belly w/et, lunguous green, & white. Eye is cream color large parotoid glands, but skin damp & smooth. Sticky white secretion # 158 in formalin. 8PM checked traps, caught a Guinea pig along the edge of the field 23Tue tapping results from last night - a couple