REPORT OF THE CHIEF ASTRONOMER xxiii 



SESSIONAL PAPER No. 25a 



37. Specimens of nodule-bearing peridotite from forty-foot dike cutting schis- 



tose rocks of Basic Complex. 



38. Western slope of Anarchist mountain-plateau, viewed from west side of 



Osoyoos lake. 



39. Types from the Kruger alkaline body: 

 A. — Porphyritic alkaline syenite. 

 B.— Nephelite syenite (salic variety). 

 C— Malignite. 



40. View looking southwest from slope of Mt. Chopaka. 



41. Typical view in higher part of the Okanagan range. 



42. A. — View of cirque head-wall composed of massive Cathedral granite. 

 B. — Felsenmeer on Similkameen batholith. 



43. Looking southeast along summit of Skagit range from ridge north of Depot 



creek. 



44. A. — Carboniferous limestone, summit of McGuire mountain. 



B. — Rugged topography at the Boundary, east of Chilliwack lake, and north 



of Glacier Peak. 

 C. — Horn topography between Tamihy and Slesse creeks. 

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



45. Western edge of Skagit range, viewed from alluvial plain of the Eraser 



Valley at Chilliwack. 



46. Summit of the Skagit range. 



47. Typical view of granitic mountains (Chilliwack batholith). 



48. Mount Baker, taken from prairie at Sumas lake, Fraser valley. 



49. Profile cross-section of the Cordillera at the Forty-ninth Parallel, showing 



vertical limits of Pleistocene glaciation, etc. 



50. Glaciated valley of Starvation creek, Clarke range. 



51. Head-wall of glacial cirque, summit of Clarke range. 



52. Winged-out moraine at mouth of Starvation creek canyon, in Flathead 



valley. 



53. A. — Hanging valley of Phillips creek, cascading into Kootenay river valley 



near Gateway. 

 B. — Drumloidal deposit and water-filled glacial kettle in thick drift of the 

 Rocky Mountain Trench (Tobacco Plains). 



54. Tandem cirque-lakes near summit of Nelson range, seven miles north of 



Boundary line. 



55. Looking east across the Columbia river to Boundary Town, lying in the old 



gravel-floored bed of the Pend d'Oreille river. 



56. Abandoned channel of the Pend d'Oreille river, at Boundary Town. 



57. Winter-talus ridge on southern wall of glacial cirque, Okanagan range. 



58. Wooded boulder-moraine forming dam at lower end of Chilliwack lake. 



59. Looking up Chilliwack lake from point near its outlet. 



60. Looking up Chilliwack lake over forested morainal dam of the lake. 



61. A. — View of the gravel plateau representing the late Pleistocene delta of 



the Fraser river. 

 B. — Detailed section in the sands and gravels of the Pleistocene deposit 

 represented in A. 



