THE WORLD'S ADVANCE 



47 



A Machine for Testing Strength of Steel, which 

 Capacity of 230,000 Inch Pounds. 



TORSION-TESTING MACHINE 



One of the interesting exhibits at the 

 San Francisco Exposition is a machine 

 for testing the twisting strength of steel, 

 which records autographically the tor- 

 sion curve of the piece of metal under 

 test. Heretofore this, measurement has 

 been calculated, with more or less ac- 

 curacy, by the person making the test. 

 It has a capacity of 230,000 inch pounds 

 and will test specimens ranging from one- 

 eighth of an inch to two and a half inches 

 in diameter, and of any length up to 

 eight feet. 



ELECTRICITY EVERYWHERE 



A house that is being exhibited at the 

 Panama-Pacific Exposition is equipped 

 with labor-saving devices throughout, all 

 of which are driven by electricity.. The 

 kitchen is equipped with electrical de- 

 vices of all kinds, a potato peeler and re- 

 frigerator. The dining room is arranged 

 to show how light lunches can be pre- 

 pared with electric chafing dishes and 

 stoves. At the rear of the house is an 

 electric workshop and garage ready for 

 recharging batteries. 



THE TREE SUMMER SEAT 



The fact that summer rest seats do 

 not have to be expensive to be attractive 

 is demonstrated in the seat seen in the 

 accompanying illustration. The seat has 

 been termed the "Tree Summer Seat," 

 from the fact that it is really built around 



a tree which was at one time 

 growing at the point where it 

 now stands. Upon finding that 

 the tree had lost all signs of life, 

 the gardener in this park devised 

 the novel idea of turning the 

 dead trunk into this artistic seat, 

 rather than dig it out bodily. 



Suiting the action to the de- 

 cision he cut the main limbs off 

 about six feet from the ground 

 and to the top of these fastened 

 a pretty roof, which is made of 

 palm branches. This done, the 

 seat, which runs all around the 

 trunk at a distance of about a 

 foot and a half from the ground, was 

 made out of sections of palm branches. 

 In addition to being inexpensive, this 

 seat is one of the most attractive in this 

 very elaborate park. 



This suggestion might well be followed 

 by others. It is not an uncommon sight 

 to see unsightly dead trees in public 

 parks, which might be converted into 

 useful and ornamental objects instead. 



has a 



An Attractive Summer Seat and Shade Built About 

 the Trunk of a Dead Tree. 



