Plate 44. 



A. — Carboniferous limestone, summit of McGuire Mountain. Looking north. 



B. -Rugged topography at the Boundary, east of Chillivvack Lake and north of Glacier 

 Peak. Mountains composed of Skagit volcanic formation. Looking southwest. 



C. — Horn topography between Tamihy and Slesse creeks. Peaks composed of metamor- 

 phosed members of the Chilliwack series. Looking southeast from McGuire 

 Mountain. 



D.— Horn topography on ridge between Slesse and Middle creeks. Massive crags of 

 Chilliwack granodiorite. Looking east. 



25a— vol. ii— p. 514. 



