144 CALIFORNIA ACADEMY OF SCIENCES. 



On the Cambrian fauna of Cape Breton and 



Newfoundland. 



In Trans. Koyal Soc. Canada, vol. 2, 1886, sec. 4, p. 147. 



Agraulos socialis Billings, A. affinis Billings, A. strenuus Billings, A. 

 (Strenuella n. subgenus) strenuus. Solenopleura communis Billings, S. 

 bombifrons n. sp. 



Illustrations of the fauna of the St. John 



group. No. 4. On the smaller eyed Trilobites of Divi- 

 sion 1, with a few remarks on the species of the higher 

 division of the group. 



In Canadian Kecord 'Sci., vol. 2, No. 6, 1887, p. 357. 



On the kin of Paradoxides ( Olenellus ?) kjerulfi. 



In Am. Jour. Sci., 3d series, vol. 33, 1887, p. 390. 



Illustrations of the fauna of the St. John 



group. No. 4. Part 1. Description of a new species 

 of Paradoxides (P. regina). Part 2. The smaller Trilo- 

 bites with eyes (Ptychoparidce and Ellipsocephalidce). 



In Trans. Koyal Soc. Canada, vol. 5, 1887, sec, 4, p. 115, 3 pis. 



Paradoxides regina n. sp. Ellipsocephalus sp. ? Agraulos? whitficld- 

 ianus n. sp., also var. compressa. Strenuella ? halliana n. sp. Liostracu* 

 tener Hartt., L. ouangondianus Hartt. (also vars. immarginala, aurora, 

 gibba, plana). Ptychoparia linnarssoni Brogger var. alata (narrow form). 

 Solenopleura robbii Hartt., S. acadica Whiteaves, also var. elongata 11. var. 

 S. robbii var. orestes. Ellipsocephalus sp. cf. polytomus. Agraulos hdl- 

 lianus n. sp. 



The great Acadian Paradoxides. 



In Am. Jour. Sci., 3d series, vol. 33, 1887, p. 388. 

 Paradoxides regina Matt. 



On the occurrence of Leptoplastus in Acadian 



Cambrian Rocks. 



In Canadian Record of Science, October, 1889. 

 Leptoplostus stenotoides n. sp., L. spiniger n. sp. 



These species are referred to Anomocare in Illustrations of the St. John 

 fauna No. 6, 1891, p. 61. 



How is the Cambrian divided? A plea for 



the classification of Salter and Hicks. 



In American Geologist, vol. 4, 1889, p. 139. 



