SCIENCE, EDUCATION, RELIGION 



697 



below. It belongs essentially to the night, and 

 is frequently seen on calm summer evenings 

 after sunset ascending from the lower to the 

 higher grounds, and dispersing in the form of a 

 cumulus at sunrise. These three primary forms 

 of clouds are subdivided as follows: (1) The 

 cirro-cumulus, composed of a collection of cirri, 



'reading itself frequently over the sky in 

 the form of beds of delicate snow-flakes. (2) 



rro-stratus or wane-cloud, so called from 

 its being generally seen slowly sinking, and in a 

 state of transformation; when seen in the dis- 



a collection of these clouds suggests the 



resemblance of a shoal of fish, and the sky, when 



thickly mottled with them, is called in popular 



ii^e a mackerel sky. (3) The cumulo-stratus 



'n-cluwl. one of the grandest and most 

 beautiful of clouds, and consisting of a collection 



of large fleecy clouds overhanging a flat stratum 

 or base. (4) The nimbus, cumulo-cirro-stratus, 

 or rain-xloud, recognizable, according to Mr. 

 Howard, by its fibrous border and uniformly 

 gray aspect. It is a dense cloud spreading out 

 into a crown of cirrus and passing beneath into 

 a shower. It presents one of the least attractive 

 appearances among clouds, but it is only when 

 the dark surface of this cloud forms its back- 

 ground that the splendid phenomenon of the 

 rainbow is exhibited in perfection. 



College Fraternities. Societies existing 

 in American colleges which are named from the 

 letters of the Greek alphabet and therefore com- 

 monly called "Greek Letter Societies." They 

 are secret organizations only in their grips and 

 passwords. They are organized chiefly for liter- 

 ary and social purposes. 



GENERAL FRATERNITIES FOR Ml N 



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