INDEX. 



337 



Beale, Prof., his Pocket Microscope, 

 i. 80; his Demonstrating Microscope, 

 i. 81; his views of viscid media, i. 

 210-212; his Views of Tissue-forma- 

 tion, ii. 253-255. 



Beck, Messrs., their Economic Micro- 

 scopes, i. 67; their Popular Micro- 

 scope, i. 68; their Large Compound 

 Microscope, i. 77; their improved 

 ditto, i. 80; their Achromatic Con- 

 densers, i. 102, 103; their arrange- 

 ment of Polarizing apparatus, i. 113; 

 their Compressors, i. 126, 127; their 

 Binocular Magnifier,-!. 187 note; their 

 Microtome, i. 192. 



Mr. Joseph, on scales of Thysa- 



nurse, ii. 223-226. 



Mr. Richd., his Dissecting Micro- 

 scope, i. 48; his Disk-holder, i. 121: 

 his Side-Reflector, i. 116; his Vertical 

 Illuminator, i. 118, 119; on scales of 

 of Thysanurae, ii. 224; on Spider's 

 threads, ii. 251. 



Bee, eyes of, ii. 229, 230; hairs of, ii. 227; 

 proboscis of, ii. 235; wings of, ii. 242; 

 sting of, ii. 245; reproduction of, 

 ii. 247. 



Berg-mehl, i. 302. 



Bermuda-earth, i. 292, 302. 



Beroe, ii. 137, 138. 



Biddulphia, i. 293; growth of, i. 275 

 note; surface-marking of , i. 276; self- 

 division of, i. 280, 281. 



Bignonia, seed of, i. 386. 



Biliary Follicles, ii. 280. 



Biloculina, ii. 71. 



Binary subdivision of Vegetable Cells, 

 i. 227, 228; of Animal Cells, ii. 253; 

 see Cells, Animal and Vegetable. 



Binocular Eye-piece, i. 33. 



Magnifier, Nachet's, i. 48, 49; 



Beck's, i. 187 note. 



- Microscopes, Stereoscopic, 

 principles of construction of, i. 25-28; 

 advantages of, i. 35-38; Objectives 

 suitable for, i. 35-37; different forms 

 of, Nachefs, i. 28-29; Wenham's, i. 

 29-31; Stephenson's, i. 30-33. 



Non-Stereoscopic, Powell and 



Lealand's, i. 84; Wenham's, i. 85. 



Stereo-Pseudoscopic, Nachet's, 



i. 33-35. 



Vision, i. 25-28. 



Bipinnaria-larva of Star-fish, ii. 151. 



Bird, Dr. Golding, on preparation of 

 Zoophytes, ii. 131. 



BIRDS, bone of, ii. 257; feathers of, ii. 

 266; blood of, ii. 269; lungs of, ii. 30". 



Bird's-head processes of Polyzoa, ii. 162. 



Bisulphide of Carbon, mounting Dia- 

 toms in, i. 291. 



Bivalve Mollusks, shells of, ii. 171-178. 



Black ground illuminators, i. 106-110, 

 i. 147. 



Blackham, Dr., on Focal Depth, i. 163 

 note. 



22 



Blankley, Mr., his Selenite Stage, i. 113. 



Blenny, viviparous, scales of, ii. 261. 



Blights of Corn, i. 323. 



Blood, Absorption-bands of, i. 92, 93. 



Blood-disks of Vertebrata, ii. 267-271; 

 mode of preserving, ii. 271; circula- 

 tion of, see Circulation. 



Blood-vessels, injection of, ii. 292-297;. 

 disposition of, in different parts, iu 

 297-301. 



Bocket Lamp, i. 131. 



Bone, structure of, ii. 255-258; mode of 

 making sections of, i. 196-199, ii. 258. 



Bones, fossil, examination of, ii. 311. 



Botryllians, ii. 160. 



Botrytis, of SilkVorms, i. 317-326. 



Botterill, Mr. , his Growing-slide, i. 122, 

 123; his Zoophyte-trough, i. 125. 



Bowerbankia, ii. 161. 



Brachionus, ii. 54, 62. 



BRACHTOPODA, Shell-structure of, ii. 

 177, 178. 



Brady, Mr. H. B., on Saccammina, ii. 

 78; on Loftusia, ii. 84; on Globigerina, 

 ii. 87. 



Braithwaite, Dr., on Sphagnacese, i. 344. 



Branchiopoda, ii. 207-209. 



Branchipus, ii. 209. 



Braun, Prof., on development of Pedi- 

 astrese, i. 270-272. 



Brittan, Dr., on Fungus-germs, i. 321. 



Brownian Movement, i. 153, 154. 



Browning, Mr., his Platyscopic Lens, 

 i. 21; his smaller Stephenson Binocu- 

 lar, i. 72-73; his Rotating Microscope, 

 i. 65; his Micro-Spectroscope, i. 89- 

 91. 



Bryozoa, see POLYZOA. 



Buccinum, palate of, ii. 182; egg cap- 

 sules of, ii. 184; development of, ii. 

 187. 



Buckthorn, stem of, i. 369. 



Bugs, ii. 219; wings of, ii. 242. 



Bugula avicularia, ii. 162, 163. 



Built-up Ceils, i. 182. 



Bulbels, of Chara, i. 261; of Marchantia, 

 i. 336, 337. 



Bulimina, ii. 89. 



Bull's-eye Condenser, i. 114, 115; use 

 of, 148-150. 



Burdock, stem of, i. 375. 



Busk, Mr. G., on Volvox, i. 238-243; on 

 Polyzoa, ii. 162, 163. 



Butterflies, see Lepidoptera. 



Cabinet for Microscopic Apparatus, 



i. 130; for Objects, i. 218. 

 Cacao-butter, for imbedding, i. 195. 

 Cactus, raphides of, i. 363. 

 Calcaire Grossier, ii. 305. 307. 

 Calcareous Deposits, organic origin of, 



ii. 308, 309. 



Calcareous Sponges, ii. 120. 

 Calcarina, ii. 90. 

 Calycanthus, stem of, i. 374. 

 Calyptra of Mosses, i. 339. 



