APPENDIX. 221 



APPENDIX A. (GENERAL). 



Androus. Used in composition with other words, and refers to 

 the stamens. It is from the Greek " aner," gen. cmdros, a man : 

 the stamens being spoken of as " the men." 



(i.) So all the stamens of a flower together are called by one word, 

 the Andrcecium ; from andros, as above, and oikion, a house ; 

 the man's house. 



(ii.) So " androus " is placed as a termination in forming words to 

 tell the number of the stamens. Thus, monandrous, diandrotts, 

 triandrous, tetrandrous , and polyandrous ; from the Greek words 

 "monos" one, alone ; % " dis" "duo," double, two; "trts" 

 " treis," three ; "tetra" from " tessares" four; " polus" many; 

 and " androus" stamens. 



(iii.) Or again, after the Greek words " protos," " proteros" first, 

 before, in protandrow or proterandrous, which mean that the 

 stamens ripen or mature before the pistil" (p. 130). 



Atmosphere. From the Greek " atmos, " vapour, and " sphaira" 

 sphere, meaning the air which surrounds the earth. 



(i.) It is almost entirely made up of three gases, nitrogen, oxygen, 

 and carbon dioxide (carbonic acid gas). Out of 100 portions 

 or volumes, about 79 would be nitrogen, and not quite 21 would 

 be oxygen, the remainder being chiefly carbon dioxide. 



(ii.) Carbon dioxide or carbonic acid gas is composed of two parts 

 of oxygen and one part of carbon. 



