406 MK. H. M. BERNAED ON THE 



50. LoMAN. — Altes und ueues iiber das Nephi'idium (die Coxaldriise) der Arachniden. Bijd. tot de 



Dierkunde, xiv. Amsterdam, 1887. 



51. Macleod. — Recherehes sur la Structure et la Signification de I'Appareil respiratoire des Arachnides, 



Arch. Biol. v. 1884. 



52. Macleod. — La Structure de I'Intestin anterieur des Arachnides. Bull. Acad. Belg. serie 3, viii. 



p. 378. 1884. 



53. Macleod. — Sur la presence d'une Glande coxale chez les Galeodes. Tom. cit. p. 655. 1884. 



54. Metschnikokf. — Embryologie des Scorpions. Zeitschr. wiss. Zool. Bd. 21. 1871. 



55. Metschnikoff. — Entvvickelungsgeschichte der Chelifer. Zeitschr. wiss. Zool. Bd. 21. 1871. 



56. Michael. — British Oribatidaj. Ray Society. 



57. Murray. — Economic Entomology. South Kensington Mus. Sci. Handbook. 



58. Newport. — On the Nervous System of the Macrourous Arachnids. Phil. Trans, vol. cxxxiii, 



1843. 



59. PococK. — Liphistius and its bearings upon the Classification o£ Spiders. Ann. & Mag. Nat. Hist. x. 



1892. 



60. PococK. — Notes on the Morphology of the Arachnida. Ann. & Mag. Nat. Hist. xi. 1893. 



61. St. Remy. — Contributions a TEtude du Cerveau chez les Arthropodes tracheates. Poitiers, 1890. 



62. ScHiMKKYiTCH, W. — Btudes sur 1' Anatomic de I'Epeire. Ann. Sc. Nat. serie 6, xvii. 1884. 



63. ScHiMKEviTCH, W. — Ubcr Bau und Entwickelung des Endosternites der Arachniden. Zool. Jb. 



Abth. Auat. viii. 1894. 



64. Schneider. — Systeme stomatogastrique des Araneides. Tabl. Zool. ii. 1892. 



65. Simmons, O. L. — Development of Lungs of Spiders. Amer. Journ. Sci. xlviii. 1894. 



66. Simon, E. — Les Arachnides de France. Vol. vii. 1879. 



67. Stecker. — Anatomisches und histologisches iiber Gibbocellum. Arch. fUr Naturg, 42 Jg. 1876, 



68. Spencer, W. B. — The Anatomy of Pentastomum teretiusculum, Baird. Quart. Journ. Micro. Sci, 



xxxiv. 1892. 



69. Strubell. — Zur Entwickelungsgeschichte der Pedipalpen. Zool. Anz. 15 Jg. 1892. 



70. Sturany, R. — Die Coxaldriisen der Arachnoideeu. Arb. Zool. lust. Wien, ix. 1891. 



71. Tarnani. — Die Genital-Orgaue des Thelyphonus. Biol. Centralbl. ix. 1889-90. 



72. Thorell and Lindstrom. — On a Silurian Scorpion from Gotland. K. Vet.-Akad. Handl. 1885. 



73. Wagner, J. — Die Embryonalentwickelung von Ixodes calcaratus, Bir. Arb. Zool. Lab. Imp. Univ, 



Petersburg, no. 5. 1894. 



74. Wagner, W. — La Mue des Araignees. Ann. Sci. Nat. serie 7, vi. 1888. 



74 a. Wasmann. — Anatomic der Spinnen. Abh. nat. Ver. Hamburg, 1846, p. 133. 



75. Walter, A. — Transkaspische Galeodiden. Zool. Jahrb. Abth. Syst. Bd. iv. p. 1095. 1889. 



76. Winkler, W. — Anatomic der Gamasiden. Arb. Zool. Inst. Wien, t. vii. 1888. (? 1886-87.) 



Supplementary List. 



77. Bernard. — Spinning-glands in Phrynus. Journ. Linn. Soc, Zool. no. 161, p. 272. 1895. 

 *78. Brauer, a. — Beitrage zur Kenntniss der Entwickelungsgeschichte des Scorpions. Zeitschr. wiss, 



Zool. Bd. lix. 1895. 

 *79. PuRCELL, F. — Note on the Development of the Lungs, Entapophyses, Tracheae, and Genital Ducts 



in Spiders. Zool. Anz. Oct. 14, 1895. 



* The last two papers were not seen by me in time to be dealt with as fully as the important conclusions arrived 

 at by their authors require. I must content myself with stating my conviction [and this applies also to Wagner's 

 paper (73)] that all conclusions based upon transitional phenomena in the development of single speciaUzed types 

 will have ultimately to be tested by a prdfounder and more extended comparative study of existing forms, including 

 their many instructive generic and specific variations. 



