164 THE APPENDAGES, ANATOMY, AND RELATIONS OF TRILOBITES. 



BERNARD, H. M. 



1892. The Apodidae. 



1893. Trilobites with antennae at last! Nature, vol. 48, p. 582. 



1894. The systematic position of the trilobites. Quart. Jour. Geol. Soc., London, vol. 50, 



pp. 411-434, text figs. 1-17. 



1895 A. The zoological position of the trilobites. Science Prog., vol. 4, pp. 33-49. 

 1895 B. Supplementary notes on the systematic position of the trilobites. Quart. Jour. 

 Geol. Soc., London, vol. 51, pp. 352-360, figs. A-C. 



BEYRICH, E. 



1846. Untersuchungen ueber Trilobiten. 2. Stuck, p. 30, pl. 4, fig. ic. 



BILLINGS, E. 



1870. Notes on some specimens of Lower Silurian trilobites. Quart. Jour. Geol. Soc., 

 London, vol. 26, pp. 479-486, pis. 31-32. Abstract in Geol. Mag., vol. 7, p 

 291, and Nature, vol. 2, p. 94. 



BRONGNIART, A. 



1822. Histoire naturelle des crustaces fossiles. Paris. 



BRUNNICH, F. E. 



1781. Beskrivelse over trilobiten, en dyreslaegt og dens arter, med en ney arts aftegning. 

 Nye Samlig of det Kong. Danske Vidensk. Selskabs. Skriften, Copenhagen. 



BURLING, L. D. 



1916. Ptedeumias and the Mesonacidae, with description of a new species, having at least 

 44 segments, from the Lower Cambrian of British Columbia. Ottawa Nat., 

 vol. 30, pp. 53-58, pl. i. 

 1917. Was the lower Cambrian trilobite supreme? Ibid., vol. 31, pp. 77-79, text figs. 1-2. 



BURMEISTER, H. 



1843. Die Organisation der Trilobiten. Berlin. 



1846. The organization of trilobites, deduced from their living affinities. Eng. transla- 

 tion, Ray Society, London. 



CALMAN, W. T. 



1909. Crustacea, in "A treatise on zoology," edited by Sir Ray Lankester. London. 

 1919. Dr. C. D. Walcott's researches on the appendages of trilobites. Geol. Mag., dec. 

 6, vol. 6, pp. 359-363, P^ 8, text fig. i. 



CARPENTER, G. H. 



1903.- On the relationships between the classes of Arthropoda. Proc. Roy. Irish Acad., 

 vol. 24, pp. 320-360, pl. 6. 



CASTELNAU, F. DE. 



1843. Systeme Silurien de 1'Amerique Septentrionale, p. 15, pl. 2, figs, i, 4. 



CLARKE, J. M. 



1888. The structure and development of the visual area in the trilobite, Phacops rana 

 Green. Jour. Morph., vol. 2, pp. 253-270, pl. i. 



CRAMPTON, G. C. 



1916. The phylogenetic origin and the nature of the wings of insects, according to the 

 paranotal theory. Jour. New York Entomol. Soc., vol. 24, pp. 1-39, pis. I, 2. 



