. Canadian forestry journal. Forests and forestry -- Canada Periodicals. 524 Canadian Forestry Journal, December, 1919 a trolley line wire is supported overhead in the middle of a street. The wire is thus kept free from contact with the brush on each side of the portage road. Any overhanging branches are trimmed off with a special tree trimmer which easily removes branches up to 2 inches in diam- eter. The main line is kept reasonably tight by being snubbed to a tree by a strain insula- tor once ever yhalf-mile. Sufficient slack is left in the wire to allow several trees to fall across it and
. Canadian forestry journal. Forests and forestry -- Canada Periodicals. 524 Canadian Forestry Journal, December, 1919 a trolley line wire is supported overhead in the middle of a street. The wire is thus kept free from contact with the brush on each side of the portage road. Any overhanging branches are trimmed off with a special tree trimmer which easily removes branches up to 2 inches in diam- eter. The main line is kept reasonably tight by being snubbed to a tree by a strain insula- tor once ever yhalf-mile. Sufficient slack is left in the wire to allow several trees to fall across it and bring the main line to the ground without breaking it or its supports. When the fallen tree is cut out the line springs up to its place. If the main line is not broken messages may be sent over it even if several trees are lying across the wire. Telephones are being in- stalled at convenient points about ten miles apart. LUMBERMEN ATTENTION! -ssai^. Cut shows tug crossing Bay Chaleur with over 2,000,000 in tow. Distance 35 miles. A. E. LOOSEN, 3ATHURST, NEW BRUNSWICK Investigate our new patented towing and holding boom. Will save its cost many times over in pre- * venting logs going adrift while being towed in open water, or for booming swift running rivers where logs are held. m QUEEN'S UNIVERSITY KINGSTON, Ontario ARTS Part of the .\rts course may be covered by correspondence. MEDICINE EDUCATION ATPLIED SCIENCE Mining, Chemical, Civil, Mechanical and Electrical Engineering SUMMER SCHOOL NAVIGATION SCHOOL Julyaud August. December toApril 20 GEO. Y. CHOWN, Registrar. FORESTER WANTED jor NEW ZEALAND A Chief Inspector of Forestry is required by the New Zealand Gov- ernment. Salary £600 per annum, increasing to £700. Candidates should be graduates of a School of Forestry of recognized standing. Full particulars and forms of application obtainable from the High Commis- sioner for New Zealand, 415, Strand, London, by whom complete applications will be received up to the 20th Janua
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