INDEX 



PAGE. 



Acadian division on Boundary Brook 30 



A. at Barachois and at Mira River 39 



Acrothele, development of 84 



A, notes on the table of distribution 103 



A. abavia, description of 100 



A. the oldest Acrothele 101 



A. avia, described and compared 98 



A. puteis, description of 100 



A. Matthewi, var. costata, &c 104 



A. proles, description of 102 



Acrothyra, a characteristic Etcheminian genus 88 



A. description of the genus 85 



A. development of 84 



A. distribution of in Basal Cambrian , 85 



A. shells of, markedly oriented 53, 57 



A. proavia, description of 



A. attitude of these fossils 91 



A. marks the Upper Etcheminian 92 



A. crassa, description of 94 



A. prima, description of ., 93 



A. signata, description of 



A. characteristic of Lower Etcheminian . 92 



A. prima, description of 73 



A. sera, description of 87 



A. orta and tarda described - 



Acrotreta, development of 84, 96 



A. distribution of 



A. subordinate of Acrothyra in Etcheminian 94 



A. table showing enlargement, &c 



A. Bailey i 



A. bisecta, description of 



A. gemmula 



A. papillata, description of 



A. -- var. lata described 



A. mut. prima, description of . . . 



A. si po, description of 



A. cf. socialis, described and compared v. 



Agnostus Acadicus cf. declivis, occurrence of 



A. cyclopyge, pygidium of found 



A. trisectus mut. germanus, described 



A. mut. ponepunctus, described 



Angelina (?) larval cephalic shield 



Asaphellus Homphrayi, var. described 



A. development of the young 



A. parallel to Bathyuriscus, &c 



A, planus, compared with other species 



A. description of 



16 c. R. 241 



