Popular Science Monthly 



811 



An Ingenious Combined Lawn-Mower 

 and Roller 



FOR smoothing golf links and other 

 large tracts of land that require 

 constant trimming, a combination lawn- 

 mower and roller has been invented. 

 The driving apparatus consists of a two- 

 cylinder gasoline motor mounted on a 

 platform in front of the driver and cooled 

 by a rapidly rotating electric fan and 

 water system. The machine is both 

 broad and rather long, so that it can 

 climb over rough grounds with a speed 

 that hand mowers and rollers could 

 hardly attempt. 



Combining the two operations of 

 mowing and rolling saves a great deal of 

 time, and, due to the speed with which 

 the mechanism travels over the ground, 

 lawns or golf links can be put into condi- 

 tion and reoccupied in a fraction of the 

 time required when the grass is mowed 

 and rolled by hand. 



The machine shown in the photograph 

 weighs one thousand, one hundred 

 pounds and is equipped with a sixteen- 

 horsepower engine. It will operate on 

 any grade up to twenty-five per cent. 



By the simple manipulation of a lever, 

 the driver can adjust the blades to cut 

 any length of grass. 



If this egg were a watch-dial, an hour 

 would have only fifty-five minutes 



w 



An Egg With Hour Ridges 



E have heard of all sorts of freak 

 eggs, from double ones to those 

 having a few sporadic bumps on their 

 surface, but never before have we seen 

 one with ridges corresponding to the 

 numerals on a clock dial. 

 All that are needed are the 

 hour and minute hands. 

 There would be one differ- 

 ence, however, between 

 using this egg-dial and 

 that of a regular clock: it 

 would register thirteen 

 o'clock. 



This lawn-mower and roller combined is able to smooth out 



the wrinkles and trim the grass on golf links in half the 



time usually required for such work 



Freezing Cocoanuts to 

 Get at the Milk 



A PENNSYLVANIA 

 man has devised a 

 means of removing cocoa- 

 nut shells by freezing the 

 nut until the shell is slightly 

 contracted, and then sub- 

 jecting it to a comparatively 

 high temperature so as to 

 cause rapid expansion. 

 Cracks in the shell are thus 

 produced. A series of ham- 

 mer blows then completes 

 the breaking of the shell. 



