PLATE All. 
Tryplasma Lonsdalei, Eth. fil. 
ig. 1. Small weathered block, with a fine example of double gemmation (a). 
Tryplasma Lonsdalei, var. scalariformis, Eth. fil. 
ig. 2. Weathered surface of block, with scattered corallites. 
a. Double gemmation. 
b. Treble gemmation. 
ig. 3. Scattered corallites on weathered limestone surface, displaying the regular, step like 
tabulae, which are equally well seen in Fig. 2. 
