Notice to Subscribers 



€L The total income of the Journal of Geology, 

 including subscriptions and contributions from 

 the University and from individuals, is practically 

 the same from year to year while the cost of 

 labor, paper, printing, and publishing has become 

 constantly greater. 



C During recent years many publishers of peri- 

 odicals have been forced to make large increases 

 in subscription prices in order to meet the in- 

 creased cost of manufacture. 



€L It has been decided in the case of the Journal 

 of Geology to meet the demands of present condi- 

 tions by changing the Journal to a bi-monthly 

 basis of issue. This will not effect the editorial 

 policy nor the value of the contributions to the 

 Journal. 



€L This plan, which enables us to maintain the 

 same price to our subscribers, will be inaugurated 

 January i, 192 1, commencing with Volume XXIX. 



