Popular Science Monthly 



253 



With an Axe and Two Springboards He 

 Chops His Way Up a Giant Tree 



FROM the logging camps in the vast 

 timber district of Vancouver have 

 come some remarkable accounts of dar- 

 ing and agility. The story that is going 

 the rounds of the camps just now is the 

 tree-climbing feat performed by a power- 

 ful lumberman, Andrew Busby. A 

 cable had to be attached to a tall 

 tree at a point one hundred and 

 twenty feet from the ground. 

 With pole-climbing spurs and 

 belt this would have been a 

 simple task, but no such equip- 

 ment was available. How was 

 it done? 



With an axe and two spring- 

 boards Busby began to climb 

 the tree. Using the first 

 board as a platform he 

 chopped a notch five feet 

 above him, slipped the 

 second board into the 

 notch, climbed up, and, 

 pulling the first board 

 after him, continued the 

 operation a score of 

 times. Within an hour 

 he stood on the last 

 springboard,, at the top 

 of the tree, and affixed 

 the rope, his companions 

 yelling their admiration 

 in the meantime. Standing more than a 

 hundred feet above the ground on a little 

 platform a few inches wide he was ap- 

 parently as calm 

 as he was when 

 on the solid 

 ground. 



Needless to 

 say, Busby is an 

 expert chopper, 

 skilled in the use 

 of the spring- 

 board and is pos- 

 sessed of the fear- 

 lessness natural 

 to the woodsman. 

 His claim to the 

 title of champion 

 tree-climber has 

 not yet been dis- 

 puted nor is it 

 likely to be, ac- 

 cording to his 

 fellow workmen. 



With an axe and two 

 springboards Busby 

 climbed to the top of a 120- 

 foot tree cutting grooves 

 into which to insert his 

 board at five-foot intervals 



The calf is photographed against a squared background 

 at regular intervals to obtain records of its growth 



Studying the Effects of Calf-Foods by 

 Means of Photographic Records 



IN keeping records of experiments to de- 

 termine the effects of various foods and 

 combinations of foods as substi- 

 tutes for whole milk in the rearing 

 of calves the Agricultural Ex- 

 periment Station of Purdue 

 University, Lafayette, 

 Ind., uses photographs 

 instead of tabulated 

 figures to furnish an 

 index in regard to the 

 condition and develop- 

 ment of the calves. 

 The photographs are made at 

 intervals of thirty days during 

 the first six months. The illus- 

 tration shows the equipment 

 used in securing the pictures. 

 The background is divided into 

 six-inch squares to designate the 

 height and length of the calf. 

 In order to secure contrasts in 

 the photographs of calves of 

 different breeds, a black or a 

 white background is used ac- 

 cording to the color of the calf. 

 The camera is placed on a 

 stationary support and is situ- 

 ated at a uniform height and 

 distance from the background 

 for each exposure. No special 

 attention is given to the calf 

 on the day it is to be photographed, so that 

 the picture may represent its ordinary 

 condition. When all preparations have 

 been completed 

 for the picture 

 the calf is led up 

 to the platform 

 in front of the 

 chart. When it 

 reaches the cen- 

 ter of the plat- 

 form a helper on 

 the other end 

 waves a cloth or 

 coat in front of it, 

 just enough to 

 cause the calf to 

 pause and con- 

 sider whether it is 

 wiser to go for- 

 ward or back. 

 During that 

 second the cam- 

 era clicks. 



