british columbia california canadian pacific railway canadian pacific survey china construction contract discrimination eagle pass eagle river engineering explosive material ferry slip financier fraser canyon fraser river goldstream river government of canada history of british columbia history of chinese immigration to canada kinbasket lake little shuswap lake netherlands new jersey new york nitroglycerin ontario overseas chinese racism rensselaer polytechnic institute rice san francisco scurvy seawall selkirk mountains shuswap lake surveying thompson river tunnel