GENERAL INDEX. 



ABERRATION, ix. 109 



Acarus exulcerans, or mange insect of 



horses, vi. 96-8 



Accidents on railways, i. 165 ; iv. 81 

 Achromatic lens, vii. 115 ; ix. 9 

 Achromatism of the eye, v. 53 

 Acoustics, i. 195 

 Actinometer, iii. 84 ; ib. 112 

 Adams and Leverrier, vi. 178 

 Admiralty, The, x. 165 

 Mgos potamos, i. 133 

 Aerolites, i. 131 

 Africa, ix. 155 



Agricultural products, iii. 4 ; x. 97 

 Air, ii. 2 ; ib. 13 ; iii. 77 ; v. 105 ; 



ix. 183 ; xi. 117 

 Air pump, v. 32 ; ib. 110 

 Air thermometer, vi. 158 

 Alcohol thermometer, ib. 

 Aldebaran, vii. 164 

 Algol, vii. 197 

 Alleghanies, ix. 153 

 Almanack, vii. 2 

 Alpine marmot, viii. 125 

 Alps, ix. 187 ; xii. 136 

 Amazons, ix. 162 

 American telegraphs, iii. 139 ; iv. 9 ; 



ib. 41 ; ib. 74 ; ib. 82 

 Amici's camera, viii. 189 

 Ammonites, their distribution, xi. 



62 



Andes, iv. 172 ; ix. 152 

 Anglo-Parisian basin, xii. 70 



sea, ib. 133 



Angular magnitude, ix. 61 

 Animalcules, vi. 201 

 Anno mundi, vii. 55 

 Annual parallax, vii. 175 

 Ants, viii. 140 ; ix. 205 

 Ant-lion, viii. 119 



LARDNER'S MUSEUM OP SCIENCE. 

 No. 156. 



Aplanatic lens, vii. 109 

 Apparatus for raising water, v. 182 

 Apparent magnitude of an object, 



v. 61 



Apparent motion, v. 72 

 Applegath & Cowper, xi. 15 

 Aqueous humour, v. 52 

 Arago, M., i. 70 

 Arbor in watches, vi. 24 

 Archipelago, ix. 141 

 Argo, viii. 47 

 Aristomachus, x. 3 

 Aristophanes, v. 158 

 Aristotle, ib. 

 Arrest, de, M., xi. 116 

 Art, iv. 188 

 Artesian wells, iv. 165 

 Artificial light, ix. 46 

 Asia, ix. 146 

 Asteroids, vi. 169 

 Asteea, vi. 166 

 Astronomers, vi. 168 ; vii. 6 

 Astronomical observations, iv. 98 

 Astronomy, viii. 198 

 Atlantic steamers, x. 116 

 Atlantis, xi. 90 

 Atmosphere, iii. 41 ; ib. 135 ; v. 97 ; 



vii. 27 ; x. 177 

 Atoms, vi. 205 

 Audubon, viii. 149 

 Auriga, vii. 157 

 Aurora borealis, x. 187 

 Australia, ix. 148 

 Austro- Germanic telegraph union, iv. 



142 



Autograph telegraph, iv. 55 

 Autumnal equinox, v. 166 

 Axis of the eye, v. 52 

 Azof, sea of, ix. 142 

 Azores, xi. 96 



o 193 



