l66 THE APPENDAGES, ANATOMY, AND RELATIONS OF TRILOBITES. 
1840. — An additional fact, illustrating the inferior surface of Calymene bufo. Ibid., vol. 38, 
p. 410. 
Handlirsch, A. 
1906. — Ueber Phylogenie der Arthropoden. Verhandl. d. k. k. zool.-bot. Gesell., Vienna, 
Jahrg. 1906, pp. 88-103. 
1907. — Functionswechsel einiger Organe bei Arthropoden. Ibid., Jahrg. 1907, pp. 153-158. 
1908. — Die fossilen Insekten. Leipzig. 
1914. — Eine interessante Crustaceenform aus der Trias der Vogesen. Verhandl. d. k. k. 
zool.-bot. Gesell., Vienna, Jahrg. 1914, pp. 1-7, pis. 1, 2. 
Hawle, I., and Corda, A. J. C. 
1847. — Prodrom einer Monographic der boehmischen Trilobiten, pp. 9, 24, 56, pi. 2, fig. 
10; pi. 3, fig. 15; pi. 4, fig. 33b-g. 
Jaekel, O. 
1901. — Beitrage zur Beurtheilung der Trilobiten, Theil I. Zeits. d. deutsch. geol. Gesell., 
Bd. 53, pp. I33- 1 ? 1 . P ls - 4-6, text figs. 1-30. 
KlNGSLEY, J. S. 
1897. — The systematic position of the trilobites. Amer. Geol., vol. 20, pp. 33-38. 
Koenen, A. von. 
1872. — Ueber die Organisation der Trilobiten. Verhandl. d. naturhist. Ver. d. preuss. 
Rheinl. u. Westphalen, vol. 29, C, pp. 93-95. 
1880. — Ueber die Unterseite der Trilobiten. Neues Jahrb. f. Min.., Geol., u. Pal., Bd. 1, 
pp. 430-432, pl- 8. 
Lang, A. 
.1891. — Text-book of comparative anatomy, Eng. ed. (Bernard). London. 
Lankester, E. R. 
1881. — Observations and reflections on the appendages and on the nervous system of 
A pus cancriformis. Quart. Jour. Micros. Soc, vol. 21, pp. 343-376. 
Laurie, M. 
191 1. — A reconstructed trilobite. Nature, vol. 88, p. 26. 
Lindstroem, G. 
1901. — Researches on the visual organs of the trilobites. K. svenska Vet.-Akad. Handl., 
new ser., vol. 34, pp. 1-86, pis. 1-6. 
Linne, K. 
1759. — Petrificatet entomolithus paradoxus sadant, som det finnes uti Hans Excellence Riks. 
Radets Hogoalborne Herr Grefve C. G. Tessins Samling. K. svenska Vet.- 
Akad. Handl., vol, 20, pp. 21, 22, pl. 1, fig. 1. 
McCoy, F. 
1846. — A synopsis of the Silurian fossils of Ireland, p. 42. 
Matthew, W. D. 
1893. — On antenn;e and other appendages of Triarthrus becki. Amer. Jour. Sci. (3), 
vol. 46, pp. 121-125, pl. 1; Trans. New York Acad. Sci., vol. 12, pp. 237- 
241, pl. 8. 
Mickleborough, J. 
1883. — Locomotory appendages of trilobites. Jour. Cincinnati Soc. Nat. Hist., vol. 6, pp. 
