INDEX AND GLOSSARY. 407 



Bacillus, 297, 327. A genus of Schizomycetous Fungi. 



Bacterium, 135, 161, 315, 327 (Gr. bacterion, a staff). 

 A genus of Schizon^cetous Fungi. These rodlike, moving ' 

 filaments have been referred to the Algae as well as to the 

 animal kingdom. Their nature is very obscure. See p. 135. 



Balsam (Canada), Liquid resin of Pinus balsamea, 73. 



Balsam cement, 76. 



Balsam mounting, 79. 



Balanus, 174 (Gr. balanos, an acorn). The acorn-shell, a 

 family of Cirrhipeda. 



Bathybius, 96, 158. Gelatinous matter from the bed of the 

 Atlantic Ocean, supposed by Huxley to be of the family of 

 Rhizopods. Its animal nature is disputed. 



Beale's generalization in biology, 118. 



Beale on Inflammation, 248. 



Beale's carmine fluid, 69. 

 " injecting fluids, 72. 

 " tint-glass camera, 40. 



Beck's microscope, 32. 



" economic microscope, etc., 345. 

 " iris diaphragm, 33. 

 " illuminator, 38. 



Bedbug, 339. Cimex Lectularius. 



Bell's cement, 76. 



Beroe, 167. Formerly classed among the cilograde Acalephs, 

 now generally in the class (Ctenophora) of the sub-kingdom 

 Ccelenterata. 



Bergmehl, 94. Mountain flour. A powdery mineral, con- 

 sisting largely of the silicious valves of Diatoms. In times of 

 scarcity in some countries it is mixed with food. 



Bile in urine, 303. 



Binocular Microscope, 30 (Lat. binus, two ; oculus, eye). 

 " Eye-piece, 30. 



Bichromate of Potash, 68. 



Bipinnaria, 168. The larval form of the star-fish, named 

 from the symmetry of its swimming organs. The star-fish is 

 developed around the stomach of the larva. 



Biology, The Microscope in, 18, 116 (Gr. bios, life, and logos, 

 discourse). 



