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I.—On the organs of circulation of the Roman snail (Helix pomatia)
Volume 19, Page 1
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II.—On Pauropus, a new type of centipede
Volume 19, Page 8
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III.—On the sap-currents (rotation and circulation in the cells of plants), with reference to the question of contractility
Volume 19, Page 10
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IV.—Conclusive proofs of the animality of the ciliate sponges, and of their affinities with the Infusoria flagellata
Volume 19, Page 13
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VI.—On the perforate structure of the shell of Spirifer cuspidatus
Volume 19, Page 29
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VII.—On the correlation of the lower Lias at Barrow-on-Soar, in the Leicestershire, with the same strata in Warwickshire, Worcestershire, and Gloucestershire; and on the occurrence of the remains of insects at Barrow and in Yorkshire
Volume 19, Page 31
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VIII.—On the fecundation of the Florideæ
Volume 19, Page 35
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IX.—On the ballast-flora of the coasts of Durham and Northumberland
Volume 19, Page 38
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XI.—On Argulus dactylopteri, a new marine Argulid from the West Indies
Volume 19, Page 45
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XII.—Description of a new genus of Diurnal Lepidoptera belonging to the family Satyridæ
Volume 19, Page 49
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XIII.—Observations on the variation of Cyllo Leda of Linnæus, a species of Satyride Lepidopteron; and on the different forms of that insect in the National Collection
Volume 19, Page 51
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XIV.—On the contractile substance and intimate structure of the Campanulariæ, Sertulariæ, and Hydridæ
Volume 19, Page 54
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Proceedings of Learned Societies
Volume 19, Page 59
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The "Monde de la Mer"
Volume 19, Page 60
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On the eyes of caterpillars
Volume 19, Page 61
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Researches on the Geryonidæ
Volume 19, Page 63
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On some Crustacea of the French coasts
Volume 19, Page 67
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On the development of Amphioxus lanceolatus
Volume 19, Page 69
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Alleged discovery of an ancient human skull in California
Volume 19, Page 70
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On the development of small Acari in potatoes
Volume 19, Page 71
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Experiments demonstrating that the members of the Newt (Triton cristatus) are only regenerated when their basal portion at least is left in its place
Volume 19, Page 72
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XVI.—On the fecundation of the Fungi
Volume 19, Page 73
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XVII.—Description of a new Madeiran Pupa
Volume 19, Page 81
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XVIII.—Remarks on the history of Dreissena polymorpha
Volume 19, Page 82
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XX.—On the muscular force of insects. (Second Note)
Volume 19, Page 95
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Description of a new genus and one new species of Satyridae
Volume 19, Page 124
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XXIII.—On some points in the muscular anatomy of the Marsupials
Volume 19, Page 127
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XXIV.—On the freshwater fishes of Algeria
Volume 19, Page 131
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XXV.—Additional notes on Euplectella speciosa
Volume 19, Page 138
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Proceedings of Learned Societies
Volume 19, Page 140
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The late Mr. Joshua Alder
Volume 19, Page 143
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On some points in the structure of the Xiphosura, having reference to their relationship with the Eurypterida
Volume 19, Page 144
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On the structure of the skin in Stellio caucasicus
Volume 19, Page 145
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On the developmental history and reproductive power of the Orthoptera
Volume 19, Page 147
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On the anatomical arrangement of the lymphatics in the Torpedos, compared with that presented by those in the other Plagiostomi
Volume 19, Page 149
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On Xenacanthus Dechenii
Volume 19, Page 152
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XXVII.—Description of a new freshwater bivalve found in Trinidad
Volume 19, Page 160
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Descriptions of five new genera and some new species of satyride Lepidoptera
Volume 19, Page 161
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XXIX.—List of Coleoptera received from Old Calabar, on the West Coast of Africa
Volume 19, Page 167
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XXX.—On the Entozoa of man and the domestic animals in Iceland
Volume 19, Page 180
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XXXI.—On two new species of birds found in Victoria
Volume 19, Page 184
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On the identity of Alepisaurus (Lowe) with Plagyodus (Steller)
Volume 19, Page 185
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XXXV.—On the young stages of a few Annelids
Volume 19, Page 203
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Proceedings of Learned Societies
Volume 19, Page 219
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Miscellaneous
Volume 19, Page 220
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Note on the law of sexual development in insects
Volume 19, Page 224
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On the structure of the heart in fishes of the genus Gadus
Volume 19, Page 225
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On a new specimen of Telerpeton Elginense
Volume 19, Page 226
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On the incubation of the eggs of the small spotted dogfish (Scyllium catulus)
Volume 19, Page 227
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On the nature of anthers
Volume 19, Page 228
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Note on the excavating sponges, with descriptions of four new species
Volume 19, Page 229
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XXXVII.—On the young stages of a few Annelids
Volume 19, Page 242
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Description of a new species of Mesoprion
Volume 19, Page 257
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XXXIX.—Remarks on the falces and maxillæ of spiders
Volume 19, Page 258
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XLI.—Notes on Professor Owen's description of Euphysetes simus
Volume 19, Page 261
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XLII.—On the temperature of geological periods, from indications derived from the observation of fossil plants
Volume 19, Page 263
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Contributions towards a Cybele Hibernica, being outlines of the geographical distribution of plants in Ireland. By D. Moore, Ph.D., and A. G. More, F.L.S. Dublin, 1866, pp. 56, 399
Volume 19, Page 286
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Proceedings of Learned Societies
Volume 19, Page 289
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On some points in the anatomy of the genus Fistulina
Volume 19, Page 302
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XLIV.—On the genus Plectostoma, H. Adams, and on the animal of Diplommatina, Benson
Volume 19, Page 305
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XLV.—Characters of some new genera of the Coleopterous family Cerambycidæ
Volume 19, Page 307
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XLVIII.—List of Coleoptera received from Old Calabar, on the West Coast of Africa
Volume 19, Page 334
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XLIX.—On the temperature of geological periods, from indications derived from the observation of fossil plants
Volume 19, Page 340
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L.—On the occurrence of Ichthyosaurus and Plesiosaurus in Australia
Volume 19, Page 355
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LII.—Note on the reproduction of the Aphides
Volume 19, Page 360
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LIII.—Remarks on M. Claparède's note on the reproduction of the Aphides
Volume 19, Page 367
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LIV.—Description of a new species of the genus Malurus
Volume 19, Page 369
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Theory of the skull and the skeleton
Volume 19, Page 371
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On Euphysetes simus
Volume 19, Page 372
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Addition to the note on Euphysetes simus
Volume 19, Page 373
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Observations on the situation of the alkaloids in the bark of the Cinchonæ
Volume 19, Page 374
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On the cephalic disk of the Remora (Echeneis)
Volume 19, Page 375
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Apus and Branchipus
Volume 19, Page 376
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IV.—On the dentition of the common mole (Talpa europæa)
Volume 19, Page 377
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LVI.—Descriptions of some Indian and Burmese species of Assiminea
Volume 19, Page 381
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Descriptions of several species of East Indian spiders, apparently to be new or little known to arachnologists
Volume 19, Page 387
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On some British Neuroptera
Volume 19, Page 395
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LIX.—Notulæ Lichenologicæ. No. XV Notes on the Lichens of Cader Idris, North Wales
Volume 19, Page 402
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New species of indo-malayan Lepidoptera
Volume 19, Page 409
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LX.—Diagnostic characters of some new genera and species of Prionidæ
Volume 19, Page 410
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LXI.—Notes on Pelonaia corrugata
Volume 19, Page 414
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LXII.—On Hyalonema lusitanicum, and on the animal or vegetable nature of sponges
Volume 19, Page 419
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LXIII.—Remarks on the river-fishes of Chili
Volume 19, Page 427
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On the type of a new family of the order Rodentia
Volume 19, Page 436
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On the spontaneous movements of Colocasia esculenta
Volume 19, Page 439
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Characters of new fishes
Volume 19, Page 441
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On some points in the anatomy of the Sipunculi
Volume 19, Page 442