776 



Canadian Forestry Journal, October, ipi6 



sive strain in such a way as to insure 

 absolutely against line breakage. In 

 this it differs radically from the well- 

 known methods employed in ordinary 

 commercial practice, which produces 

 a line of extreme rigidity because the 

 open right-of-way insures against the 

 danger of falling timber to which the 

 forest line is constantly exposed. 



The Cost of Building. 



Given normal prices for material, a 

 hne starting at a railroad, standing 

 green timber through which to build, 

 and proper skill in construction and 

 supervision, a first class tree line can 

 be built as low as $25 per mile, but will 

 usually run from $35 to $45 per mile. 

 Where the haul is longer or where sup- 

 plies must be packed on horses, and es- 

 pecially where dead timber or heavy 

 underbrush is encountered, this cost 

 may be increased to from $50 to $65 

 per mile. Station equipment and line 

 construction tools are, of course, addi- 

 tional. The latter cost about $100 for 

 a crew and last for many years. 



Maintenance on a properly construct- 

 ed tree line is very low unless the line 

 runs for a long distance through stand- 

 ing dead timber. Ordinarily an an- 



nual or semi-annual overhauling at a 

 cost of not more than $1 per mile is 

 sufficient, in addition to requiring pa- 

 trolmen to repair all injuries to the line 

 in their district as they occur. In 

 green timber these are inconsiderable, 

 but in dead timber where trees are con- 

 stantly falling, at least one man day 

 per month to each 15 miles of line for 

 maintenance work should be planned 

 for. Of course, nearly all forest tele- 

 phone line maintenance is carried on in 

 connection with fire patrol, from which 

 it is difficult to separate it in a cost 

 record. Such lines have a life of from 

 fifteen to twentv vears. 



About 710 miles of telephone lines 

 have been constructed by the Domin- 

 ion Forestry Branch during the past 

 four years in the 25,000,000 acres of 

 reserves in the four western provinces. 

 The mileage is distributed as follows : 



Alberta Reserves 75 miles 



Alberta Reserves 265 miles 



Saskatchewan Reserves 50 miles 



Manitoba Reserves .320 miles 



Total 710 miles 



Ready -Prepared Lectures 



For the use of clergymen, teachers, 

 and others desiring to present an illus- 

 trated lecture on the forests of Canada, 

 the Secretary of the Canadian Forestry 

 Association has completed the manu- 

 script of a new "forest travelogue;' en- 

 titled 



"Guarding the Forests." 



Fifty-six photographic lantern slides 

 are supplied with the manuscript, and 

 will fit any standard make of stereop- 

 ticon. 



The manuscript, to be read by the 

 lecturer, contains a general introduc- 

 tory talk, together with running com- 

 ment on each of the 56 slides, so ar- 

 ranged as to make public presentation 

 as interesting and effective as possible. 



Conditions. 



Applicants are required to pay ex- 

 press charges both ways (usually from 

 50 cents to $1.00), and to return slides 

 and manuscript in good condition on 

 the day following the lecture. 



As the Canadian Forestry Associa- 

 tion is able to provide a very limited 

 number of these free Lecture equip- 

 ments, it is necessary that applicants 

 inform the Secretary where the lecture 

 will be held, under what auspices, and 

 the date .best adapted to local condi- 

 tions. 



The offer of the Association applies 

 only where the applicant is able to 

 state that at least fifty adults will be 



