INDEX. 



•87 



Intermediate Skeleton of Forami- 



nifera, 488. 

 Internal Casts of Foraminifera, 



502, 507 note, 513, 518, 519. 

 Inverted Microscope, Dr. L. 



Smith's, 85, 86. 

 Iris, structure of leaf of, 421 — 424. 

 Isthmia, 301, 302 ; markings on, 



278, 279 ; self -division of, 284. 

 Itch-Acarus, 686. 

 lulus, fungous vegetation in, 356. 



Jackson, Mr. , his Eye-piece Micro- 

 meter, 95, 96. 



Jelly-fish, development of , 544 — 547. 



Jewel-lenses, 21. 



Jukes, Prof., on Foraminiferal 

 reef, 755 note. 



Kellnejr's Eye-piece, 27. 



Kidneys, structure of, 725. 



Kolliker, Prof. , on Fungi in Shells, 

 360 note ; on Development of 

 Higher Animals, 750 note. 



Klitzing, Prof. , on Classification of 

 Diatomace<e, 289, 290. 



Labelling of Objects, 234, 235. 



Labyrinthodon, tooth of, 763, 764. 



Lachmann, Dr., on Lieberkuhnia, 

 437 ; on Amoeba, 444 ; on Infu- 

 soria, 481 note. 



Lacinularia, Huxley on, 475 note. 



Lacunse of Bone, 695, 696. 



Ladd's Student's Microscoue, 66 — 

 68. 



Lagena, 483, 500. 



Laguncula, 577 — 580. 



Lamellicornes, antenna? of, 665. 



Lamps, microscope, 140, 141. 



Laurentian Formation of Canada, 

 517 ; of Europe, 520 note. 



Lawrance's glycerine-jelly, 221. 



Lealand, Mr., his preparations of 

 muscular fibre, 728. 



Leaves, structure of, 417 — 424 ; 

 mode of examining, 422, 424. 



Leech, teeth of, 635. 



Leeson, Dr., his double-refracting 

 Goniometer, 98 ; his Selenite 

 plate, 120. 



Legg, Mr., on collection of Forami- 

 nifera, 521, 522. 



Leidy, Dr., on parasitic Fungi, 356 

 —358. 



Lenses, refraction by, 4 — 9. 



Lepadidce, metamorphosis of, 647, 

 648. 



Lepidoptera, scales of, 655 — 657; 

 proboscis of, 670, 671 ; wings of, 

 660, 678 ; eggs of, 683, 684. 



Lepidosieus, bony Scales of, 696, 

 702. 



Lepisma, scales of, 657. 



Lepralia, 577, 581. 



Lemcea, 646. 



Levant-Mud, microscopic organ- 

 isms of, 754, 755. 



Lever of Contact, 203. 



Lever-Stage, 104. 



Libellula, eyes of, 662; respiration 

 of larva of, 676. 



liber, 413. 



Lichens, 350, 351. 



Licmophorece, 292, 293. 



Lieberktthn, speculum of, 124, 125 ; 

 mode of using, 163. 



Lieberkuhnia, 437. 



Ligaments, structure of, 715, 716. 



Light, suitable for Microscope, 139 

 — 141 ; position of, 141, 142 ; ar- 

 rangement of, for Transparent 

 objects, 152—160; for Opaque 

 objects, 160—168. 



Ligneous Tissue, 401, 402. 



Ligula of Insects, 667 — 670. 



Li max, tongue of, 606, 607. 



Limpet, tongue of, 607. 



Liquid Glue, use of, 205, 211. 



Lister, Mr., his improvements in 

 Achromatic lenses, 15 ; his Erec- 

 tor, 90 ; his Zoophyte-trough, 

 131, 132 ; his observations on 

 Zoophytes, 540; on Social Asci 

 dians, 590, 591 note. 



Lituolida, 498—500. 



Liver, structure of, 724, 725. 



Liverwort, see Marchantia. 



Lobosa, 442 — 447. 



Logan, Sir W., on Laurentian For- 

 mation, 517 note. 



Lophophore of Polyzoa, 581. 



Lophyropoda, 639, 640. 



Loven, Prof., on tongues of Gas- 

 teropods, 608. 



Lubbock, Sir J., on Daphnia, 644. 



Luminosity of Medusa}, 549 ; of 

 Annelida, 634. 



Lungs, of Reptiles, 747 ; of Birds, 

 747, 748 ; of Mammals, 749. 



Lymnceus, development of, 613, 614. 



Lymph, corpuscles of, 712. 



Macro-gonidia, of Volvox, 254; of 

 Pediastrese, 270 ; of Hydrodic- 

 tyon, 329. 



Magnetic Stage, 66, 67. 



Magnifying power, mode of deter- 

 mining, 183 — 184; augmentation 

 of, 145, 146; of different Objec- 

 tives, 176 — 179. 



Mahogany, section of, 412. 



