TITLES. 
Ech. 11 
69. [Driesch, H.] Zur Yerlagerung der Blastomeren des Echinideneies. 
Anat. Anz. viii, pp. 348-357 (April, 1893). [IT, F, vii.] 
Abstract, Amer. Natural, xxvii, pp. 743 & 744 (Aug. 1893) ; technical 
note by Sciiiefferdecker, Zeitschr. wiss. Mikr.x, p. 96 (6 July, 1893). 
70. . Entwicklungsmechanische Studien. vii. Exogastrula und 
Anenteria (ueber die Wirkung von Warmezufuhr auf die Larven- 
entwicklung der Ecbiniden). yiii. Ueber Variation der Mikromeren- 
bildung (Wirkung von Verdiinnung des Meerwassers). ix. Ueber 
die 'Vertretbarkeit der “Anlagen” von Ektoderm und Entoderm, 
ix. Ueber einigo allgemeine entwicklungsmeclianischo Ergebnisse. 
MT. Stat. Neapel, xi, pp. 221-254, pi. xi(Sept. 1893). [II, F, vii.] 
Abstracts, — J. R. Micr. Soc. 1894 (June), pp. 347 & 348, and Amer. 
Natural, xxvii, pp. 1100-1103 (Dec. 1893). 
Duncan, P. M. (28) Zool. Rec. 1889 ; abstract by T. Ebert, N. 
Jahrb. Min. 1892, ii, pp. 156-165. 
71. & Sladen, W. P. A note upon the Anatomy of the Peri- 
gnathic Girdle of Discoidea cylindrical Lmk., sp., and of a species of 
Echinoconus. Ann. Nat. Hist. (6) iv, pp. 234-239 (Sept. 1889). 
[II, 33, i, c, 2.] 
Abstract of this previously unrecorded paper, and of (22) Zool. Rec. 
1886, by T. Ebert, N. Jahrb. Min. 1892, i, pp. 447-449. 
Durham, H. E. Zool. Rec. 1891. Abstracts, — Amer. Natural, xxvi, 
pp. 865-867 (Oct. 1892); J. R. Micr. Soc. 1892, pp. 193 & 215. 
72. Dyciie, D. T. D. The Criuoid Ileterocrbius Subcrassus. Science, 
xx, p. 66 (July, 1892). [II, B, i, f, 1 ; ii, d.] 
73. Efisio, M. Saggio d’un Catalogo metodico dei principali e pii\ 
comuni Animali Invertebrati della Sardegna. Boll. Soc. Rom. Zool. 
i, pp. 246-281 (Jan. 1893). [Ill, A.] 
74. Engel, — . Ueber einige neue Echinodermen des schwabischen 
Jura. Jahresh. Ver. Wurttemb. xlviii, pp. xlvii-lv, pi. ii (1892). 
[HI, B, iii. IV, D, E, F.] 
75. Ernst, A. Observaciones mineralogicas y geological. Rev. Univ. 
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Etheridge, R. (jun.) (20) Zool. Rec. 1892. Abstracts, — by V. 
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F. A. Bather, Geol. Mag. Dec. iii, vol. x, pp. 80-83 (Feb. 1893). 
76. . The Organic Remains of the Permo-Carboniferous System 
(Chap. xxn). The Organic Remains of the Rolling Downs For- 
mation (Chap, xxxii). The Organic Remains of the Desert Sand- 
stone Formation (Chap, xxxiv) and Palaeontology of New Guinea 
(Chap, xxxix). In “ The Geology and Palaeontology of Queensland 
and New Guinea,” by R. L. Jack and R. Etheridge, Jun. 2 vols., 
text, xxii & 768 pp., pis. i-lxvii & folding map. Brisbane : 1892, 8vo. 
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