File:Popular science monthly (1872) (14596405637).jpg

Identifier: popularsciencemo89newyuoft (find matches)
Title: Popular science monthly
Year: 1872 (1870s)
Authors:
Subjects: Science
Publisher: New York : D. Appleton
Contributing Library: Gerstein - University of Toronto
Digitizing Sponsor: University of Toronto

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se\en luiniiredand ninety-fi\-e feet below the summit ofMount McDonald peak. Ip to the in-ttrior summit the passage through thetunnel has a grade of one per cent. The(limb for the tunnel is made b\- the rail-road on the most iiortlierK station onits route. The tunnel route originalKdisc-o\-ered h\- the engineers was six mileslong, hut this was gradually decreased toconform to the five-mile tunnel. Thejiass gi-ts its name from Major A. B.Rogers, who penetrated the faslnes.sesof the Silkirks in iSfti and discoxcredthis opening through the range. 552 TuniieJiii.o- Throufrh the Canadian Rockies One of the inter-sections of thepioneer tunnelwith the maintunnel. Horseswere used tohaul the muckcars to the pointwhere they weredumped intorailroad cars.From this pointto the mouth ofthe tunnelstandard-gagecompressed -airlocomotiveswere employed A view of theentrance to thetunnel underMount McDon-ald. It emergesat a point in theBear Valleyabout one thou-sand feet be-low the presentrailroad route
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In the lower picture the mountain isshown sliced away to reveal the pio-neer and main tunnels, as well as thelaterals connecting the two. The matenal excavated was hauled throughthe pioneer tunnel and then throughthe main tunnel as indicated by thearrows in the diagram on the right 55:1 Bucking a Wooden Football Line PITTING your shoulder to thewheel of opposition and developingstrength and power from the strug-gle is an ethical procedure in the gener-ally accepted meaning of the words.But football players have not only re-duced the axiom to practise but havee\en manufactured a sturdy opponentwhich is equal in weight and resistancefa Seven human beings. Heavy oak planks ten feet long, onefoot wide and four inches thick areput together in pairs and laid seven feetapart, with one end each rounded likethe runner of a sled. Cross-beams ofsimilar material are then fastened inplace until the whole resembles theframework of a sled. Seven planks threefeet long and one wide are placed in anupr

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