INDEX. 



Abdomen, 129. 

 Aberration, chromatic, 



173. 

 Aberration, spherical, 



172. 



Acalephae, 153. 

 Acarus, 131. 

 Accumbent, 44. 

 Achromatic, 178. 

 Achromatic condenser, 



5. 



Achromatism, 177. 

 Acicular, 24. 

 Acotyledons, 43. 

 Acrocarpi, 55. 

 Acrostalagmus, 111. 

 Actinocyclus, 80. 

 Actinophrys, 156. 

 Adapter, 2. 

 Adulteration, 23. 

 ^cidium, 100. 

 Agaricus, 97. 

 Albumen, of seeds, 43. 



, of eggs, 113. 



Algaa, 64. 

 Alyscum, 161. 

 Amoeba, 155. 

 Amphileptus, 162. 

 Angiocarpi, 94. 

 Angle of vision, 175. 

 Anguillula, 152. 

 Angular, 23. 

 Animal tissues, 113. 

 Ankistrodesmus, 74. 

 Annular vessels, 27. - 

 Annulus, of Ferns, 50. 



, of Fungi, 98. 



, of Mosses, 55. 



Anoplura, 135. 



Ant, 143. 



Antennae, of Entomos- 



traca, 127. 

 Antennaria, 111. 

 Anthers, 37, 39. 

 Antheridia, of Algse, 65. 

 , of Ferns, 52. 



