1447
1-21

QUARTERLY JOURNAL

OF

MICROSCOPICAL SCIENCE:

EDITED BY

E. RAY LANKESTER, M.A., LL.D., F.R.S.,
Linacre Professor of Human and Comparative Anatomy, Fellow of Merton College, and
Honorary Fellow of Exeter College, Oxford.

WITH THE CO-OPERATION OF

E. KLEIN, M.D., F.R.S.,

Lecturer on General Anatomy and Physiology in the Medical School of
St. Bartholomew's Hospital, London;

ADAM SEDGWICK, M.A., F.R.S.,
Fellow and Lecturer of Trinity College, Cambridge;

AND

A. MILNES MARSHALL, M.A., D.Sc., M.D., F.R.S.,
Late Fellow of St. John's College, Cambridge; Professor in the Victoria University;
Beyer Professor of Zoology in the Owens College, Manchester.

VOLUME XXXIII.-NEW SERIES.

With Lithographic Plates and Engravings on Wood.

J. & A. CHURCHILL, 11, NEW BURLINGTON STREET.

CONTENTS.

CONTENTS OF No. CXXIX, N.S., DECEMBER, 1891.

MEMOIRS:

Some Problems of Reproduction: a Comparative Study of Gameto-

geny and Protoplasmic Senescence and Rejuvenescence. By

MARCUS M. HARTOG, M.A., D.Sc., F.L.S., Professor of Natural

History in the Queen's College, Cork.

On Wandering Cells in Echinoderms, &c., more especially with

regard to Excretory Functions. By HERBERT E. Durham,

M.A., King's College, Cambridge, and Guy's Hospital, London.

(With Plate I)

PAGE

. 1

81

On the Nature of the Excretory Processes in Marine Polyzoa.

By SIDNEY F. HARMER, M.A., B.Sc., Fellow and Assistant

Tutor of King's College, Cambridge. (With Plates II and III) 123

Spermatogenesis in Myxine glutinosa. By J. T. CUNNINGHAM,

M.A., Naturalist on the Staff of the Laboratory of the Marine

Biological Association, Plymouth. (With Plate IV)

Notes on some Aquatic Oligochata. By W. BLAXLAND BENHAM,

D.Sc. Lond., Aldrichian Demonstrator of Comparative Anatomy,

Oxford. (With Plates V, VI, and VII)

169

187

On the Differentiation of Leprosy and Tubercle Bacilli. By

CHARLES SLATER, M.B.Cantab. .

219

On a Specimen of the True Teeth of Ornithorhynchus. By Pro-

fessor CHARLES STEWART, P.L.S. (With Plate VIII).

229

b

CONTENTS OF No. CXXX, N.S., JANUARY, 1892.

MEMOIRS:

On Onch nesoma Steenstrupii. By ARTHUR E. SHIPLEY,

M.A., F.L.S., Fellow and Lecturer of Christ's College, Cam-

bridge, and Demonstrator of Comparative Anatomy in the Uni-

versity. (With Plate IX)

Note on a Sieve-like Membrane across the Oscula of a Species

of Leucosolenia, with some Observations on the Histology of

the Sponge. By EDWARD A. MINCHIN, Assistant to the Linacre

Professor of Human and Comparative Anatomy in the Uni-

versity of Oxford. (With Plates X and XI)

The Development of the Oviduct in the Frog. By ERNEST W.

MACBRIDE, B.A.Cantab., B.Sc. Lond., Scholar of St. John's

College, and Scholar of the University of London. (With

Plates XII and XIII)

PAGE

233

251

. 273

On the Nauplius Eye persisting in some Decapods. By MARGARET

ROBINSON, University College, London. (With Plate XIV) 263

Notes on Two Acanthodriloid Earthworms from New Zealand.

By W. BLAXLAND BENHAM, D.Sc. Lond., Aldrichian Demon-

strator of Anatomy in the University of Oxford. (With Plates

XV and XVI)

On a New Genus of Synascidians from Japan. By ASAJIRO OKA,

of the Imperial University of Tokio, and ARTHUR WILLEY,

B.Sc.Lond. (With Plates XVII and XVIII) .

289

313.

CONTENTS OF No. CXXXI, N.S., MARCH, 1892.

MEMOIRS:

A New Branchiate Oligochate (Branchiura Sowerbyi). By

FRANK E. BEDDARD, M.A., Prosector to the Zoological Society

of London, Lecturer on Biology at Guy's Hospital. (With

Plate XIX)

The Formation of the Germ-layers in Crangon vulgaris. By

W. F. R. WELDON, M.A., F.R.S., Fellow of St. John's College,

Cambridge; Jodrell Professor of Zoology in University College,

London. (With Plates XX, XXI, and XXII) .

325

343

The Pigment Cells of the Retina. By J. S. BODEN and F. C.

SPRAWSON, Students of Medicine, King's College, London

Observations upon the Development of the Segmentation Cavity,

the Archenteron, the Germinal Layers, and the Amnion in

Mammals. By ARTHUR ROBINSON, M.D., Senior Demonstrator

of Anatomy at the Owens College, Manchester. (With Plates

XXIII, XXIV, XXV, XXVI, and XXVII)

PAGE

365

369

CONTENTS OF No. CXXXII, N.S., JUNE, 1892.

MEMOIRS:

Primitive Segmentation of the Vertebrate Brain. By BERTRAM

H. WATERS, A.B., E. M. Fellow in Biology. (With Plate

XXVIII)

457

The Oscula and Anatomy of Leucosolenia clathrus, O.S.

By E. A. MINCHIN, B.A., Assistant to the Linacre Professor of

Human and Comparative Anatomy, Oxford. (With Plate XXIX) 477

Researches into the Embryology of the Oligochata. No. I.-

On Certain Points in the Development of Acantho drilus

multiporus. By FRANK E. BEDDARD, M.A., Prosector of the

Zoological Society of London. (With Plates XXX and XXXI) 497

On the Innervation of the Cerata of some Nudibranchiata. By

W. A. HERDMAN, D.Sc., F.L.S., Professor of Natural History;

and J. A. CLUBB, Assistant in the Zoological Laboratory, Uni-

versity College, Liverpool. (With Plates XXXII, XXXIII,

and XXXIV)

Notes on Elasmobranch Development.

By ADAM SEDGWICK,

M.A., F.R.S., Fellow and Lecturer of Trinity College, Cam.

bridge. (With Plate XXXV).

541

559

On the Paired Nephridia of Prosobranchs, the Homologies of the

only remaining Nephridium of most Prosobranchs, and the Re-

lations of the Nephridia to the Gonad and Genital Duct. By

Dr. R. v. ERLANGER. (With Plates XXXVI and XXXVII) 587

TITLE, CONTENTS, AND INDEX.