“…INC 1981; Williams and Warwick, 1980), to three (Kahle et al, 1978;Quain, 1908;Rohen and Yokuchi, 1984;Truex and Kellner, 1948), to four (Woodburne, 1973), and to six (Wolf-Heidegger, 1962;Carpenter, 1985). Anteriorly, they range from none (Anson, 1950;Hamilton, 1956;Kahle et al, 1978;Morris, 1966;Ferner, 1963;Quain, 1908;Rohen and Yokuchi, 1984;Snell, 1978;Truex and Kellner, 1948;Woodburne, 1973), to one (Piersol, 1907), or two (Kiss and Szentagothai, 1964;Kuntz, 1936). Others mention connecting fine strands, filaments, or trabeculae (Bacon and Niles, 1983;Clemente, 1987;Snell, 1978;Walton, 1987;Krause and Cutts, 1986;Leeson et al, 1988;Basmajian and Slonecker, 1986;Martin, 1989).…”