INDEX TO PLATES. v 



FAVOSITES — Continued. Plates. 



/pirum 14, 15 



proximus 15, 27, 28 



/quereus .\ . 18, 19 



radiatus 12, 13 



radiciformis 20 



s ramulosus 19 



^rotundituba 14, 27 



y spjculatus 15 



spongilla 8 



tuberosus 16, 19 



venustus 9 



MlCHELINIA 



clappi 41, 42 



/ corrugata 39 



cylindrica 32, 36 



favositoidea 37, 38 



insignis 27, 39, 40 



/ niagarensis 39 



y plana 38, 39, 40 



prima 39, 40 



MlLLERIA 



y laminata 46 



Platyaxum 



^canadense 60 



corioideum 61 



fischeri 60 



/ foliatum 63 



y turgidum 60 



>-undosum 60 



