[ganong] 



PEAT BOGS OF "SEW BRUNSWICK 



143 



-t. The PnysicAL Characteristics and Mode ok CIrowth of the 



IjOQS. 



For the full understaiuliiig of the ecology of {\\v raised bogs it is 

 needful to consider : 



1. Their extent. outlin<'. and relation to the surrounding topo- 

 graphy. 



2. Their contours and relation of surface to bottom. 



3. Their water sup])ly and temperature conditions. 



4. Their internal structure and mode of growth. 



5cttlc ,«. Yards 



(3 Trees 



^^° Skrubs iff* 



V' i-€mpdrijn< 



S*. X', ,, ^ c.^^ meadow 





Fk;. :!.— Mav of the Lkpkeau bog. 



S— Enipetrum = Sphagnum — Kmpelrum bog, etc. Doited lines are those of the 

 survey. B— Station for temperature measurement.'^. XA, XD, XE are lines 

 of levels shown in pr^ifiles in figs. 4, .5, 0, 7. The Islands are in a line south of 

 XE. Other features explained in text. 



The region iu which the bogs occur is underlaid by hard Pre-Cam- 

 Jurian rocks, rising into low rounded hills, not over 200 to oOU feet high. 

 Iti the basins between them, and not over 50 to ItHi ieet above sea level, 

 ■occur the boirs. 



