720 



Man, hair of, 595, 596. 

 Mandibulate mouth of Insects, 565-567. 

 Marchantia, general structure, of, 344, 345; 

 stomata of, 345, 346 ; conceptacles of, 

 346 ; sexual apparatus of, 347, 348. 

 MargaritacecB, shells of. 506-508, 509. 

 Marine Glue, uses of, 219-221. 

 Mastogloia, 299-301. 

 Medullary Rays, 381-384. 

 Medusa, development of, from Zoophytes, 



52, 53, 467-470. 

 Megatherium, teeth of, 590. 

 Melicertians, 432-434. 

 Meloseira, 299 ; self-division of, 284 ; con- 

 jugation of, 286. 

 Menelaus, scale of, 557. 

 Meniscus eye-piece, 85. 

 Meridian, 296, 297. 



Metamorphoses of Animals, 50 ; of Cirrhi- 

 peds, 50, 548-550; of Crustacea, 52,551, 

 552 ; of Echinoderms, 52, 486-491 ; of 

 Infusoria, 419-422 ; of Mollusks, 51, 504, 

 505 ; of Annelids, 52, 536, 537. 

 Micrometer, Cobweb, 120-122; eye-piece, 



122-124. 

 Micrometry, by Micrometer, 120-124; by 



Camera Lucida, 126. 



MICROSCOPE, early history of, 35-41 ; later 

 history of, 41-57; educa- 

 tional uses of, 57-64. 

 optical principles of construc- 

 tion of, 77-85 ; mechanical 

 principles of construction 

 of, 86-90. 



Compound, 81-85, 96, 97. 

 Field's, 97-99. 

 Highley's, 99, 100. 

 Nachet's, 100-102. 

 Ditto, binocular, 114-117. 

 Powell and Lealand's, 110- 



112. 



Ross's, 108-110. 

 Smith and Beck's large, 112- 



114. 



Ditto dissecting, 103-105. 

 Ditto student's, 102, 103. 

 Ditto educational, 104, note. 

 Warington's universal, 105- 



108. 



Simple, 77-81, 90. 

 Field's, 93, 94. 

 Gairdner's, 92, 93. 

 Grunow's, 706. 

 Queen's, 706. 

 Quekett's, 94-96. 

 Ross's, 90-92. 

 Spencer's, 704. 

 support required for, 154 ; 

 care of, 158-160; general 

 arrangement of, 160; for 

 transparent objects, 168- 

 172 ; for opaque objects, 

 175-177. 



Microscopic Dissections, 201-203. 

 Microscopists, fallacies of, 39-41. 

 Microtome, 203, 204. 

 Mildew, fungous vegetation of, 340, 341 

 Milk, 683. 



Millon's test for albuminous substances, 213. 

 Mineral Objects, 645. 

 Minnow, circulation in, 619. 



Molecular movement, 185, 186. 



MOLLUSCA, shells of, 506-517 ; tongues of 

 517-521 ; development of, 521-525 ; 

 ciliary motion on gills of, 526 ; organs of 

 sense of, 527, 528. 



Monocotyledonous Stems, structure of, 

 376-378. 



Morbid growths, examination of, 674. 



Morpho Menelaus, scale of, 194, 557. 



MOSSES, structure of, 348, 349 ; sexual ap- 

 paratus of, 347-350; urns of, 350, 351 ; 

 peristome of, 351 : development of spores 

 of, 352. 



Moths ; see Lepidoptera. 



Mould, fungous vegetation of, 340, 341. 



Mounting of objects ; see Objects. 



Mounting-Plate. 21*9. 



Mouse, Ear of, cartilage of, 608. 



Mouth of Insects, 565-568. 



Mucous Membranes, structure of, 604 ; 

 capillaries of, 623 ; ulcers of. 670. 



Miiller, O. F., his researches on Animal- 

 cules, 38. 



Miiller, Prof., his researches on Echino- 

 derm-larvae, 486-491. 



Muscardine, or silk-worm disease, 44, 45, 

 336. 



Muscular fibre, structure of, 611-613 ; value 

 of, as test-object, 195 ; mode of examining 

 and preparing, 613, 614, 655; capillaries 

 of, 623, 624. 



Musk-deer, hair of, 595. 



Mussel, ciliary action on gills of, 526. 



Mya, structure of hinge-tooth of, 509. 



Mycelium of Fungi, 340-343. 



Myliobates, teeth of, 589. 



Nachet's Microscope, 100-102 ; his Bino- 

 cular Microscope, 114-117 ; his prism for 

 oblique illumination, 136, 137. 



Nacre, structure of, 509-511. 



Nais, 537, 538. 



Nassula, teeth of, 415. 



Naviculce, 293, 294 ; movements of, 287. 



Needles for dissection, mode of mounting, 

 203. 



Nematoid Entozoa, 531, 532. 



Nepenthes, spiral vessels of, 374. 



Nervous Tissue, structure of, 614, 615, 

 653; mode of examining, 615, 616, 653. 



Newt, circulation in larva of, 619. 



Nicol-Prism, 140. 



Nobert's Test, 196, 197. 



Noctiluca, 471, 472. 



NostochacecB, 312, 313. 



Notommala, 429-435. 



Nucleus of Vegetable cells, 251, 365'; of 

 Infusoria, 418. 



Nudibranchs, development of, 521 , 522. 



Nummulite, structure of, 446, 634-637. 



Nuphar lutea, parenchyma of, 362. 



Object-Finder, 129, 130. 



Object-glasses, achromatic, principle of, 73, 

 74; construction of, 74-76; adjustment 

 of, for covering of object, 76, 77, 165- 

 168; defining power of, 187, 188; pene- 

 trating power of, 188 ; resolving power 

 of, 188, 189; flatness of field of, 189; 

 comparative value of, 18S-192 ; different 

 powers of, 193-198; tests for, 193-199; 



