8 GLOSSARY. 



Anor'thoscope (Gr. anortho, I set straight again ; skopeo, I be- 

 hold). An instrument so constructed, that distorted 



images drawn on cards for the purpose, on being placed 



in it, and whirled rapidly round, are seen restored to their 



just proportions. 

 Antambula'cral face (Gr. anti, opposite). In the star-fish, that 



face on which there are no ambulacra. 

 Ante-bra'chium (L ante, before; brachium, the arm from the 



elbow to the wrist). The fore-arm. 

 Antefur'ca (L. ante, before; furca, a fork). The anterior 



forked projections from the sternal wall in each somite of 



a cockroach. 

 Anten'na (L. the yard-arm of a ship). A jointed appendage of 



the head in Insecta, Crustacea, and Myriapoda. 

 Anten'nule (L. dim. of antenna], The shorter pair of antennae 



in the Crustacea. 

 Ante'rior (L. ante^ before). In Comparative Anatomy, towards 



the head. In Human Anatomy often employed in the 



sense of ventral. 

 An'ther (Gr. ' anthos, a flower). In plants, the sac of the stamen 



which contains the pollen. 



Antheri'dium (Gr. anthos, a flower; eidos, form). The repro- 

 ductive organs of ferns and other cryptogamic plants 



which contain the male reproductive elements. 

 Anthe'rozoids (Gr. anthos, a flower; zoon, an animal). The 



vibratile filaments in cryptogamic plants which are the 



homologues of the spermatozoa of animals. 

 Anthro'pidse (Gr. anthropos, a man). The genus man. 

 An'thropomor'pha (Gr. anthropos, a man ; morphe, form). The 



man-like apes. 

 Antihelix (Gr. anti, opposite). The curved ridge of the 



external ear within the helix. 

 Antitra'gus (Gr. anti, opposite). A small elevation of the 



external ear opposite the tragus. 

 Antitrochan'ter (Gr. anti, opposite). The articular surface on 



the ilium of birds on which the great trochanter of the 



femur plays. 

 An'trum pylo'ri (L. cave of the pylorus). A depression near 



the pyloric end of the human stomach. 

 Anu'ra (Gr. a, not ; oura, a tail). A group of the Amphibia, 



comprising the frogs and toads, the members of which are 



destitute of tails. 

 A'nus (L. a vent). The external opening of the large intestine. 



