Popular Science Monthly 



251 



The Most Nutriment in the 

 Least Space 



IT often happens that a forest 

 patrol discovers a small brush 

 fire, which, if not checked in its 

 incipient stage, may soon grow into 

 a great conflagration that may lay 

 waste to a whole country-side. In 

 many instances the forest guard 

 dares not attempt to send for help 

 but starts in to fight the fire single- 

 handed. These lone battles against 

 such great odds often last for hours 

 until the fire is checked or until its 

 smoke has summoned other patrolmen 

 to the assistance of their comrade. 



Should the guard discovering the fire 

 be forced to give up the 'single-handed 

 battle after se\eral hours work in order 

 to seek food, a fire which might othervsise 

 have been checked while stilHn its infancy 

 may sweep a great forest before it, resulting, 

 not only in the loss of thousands of dollars 

 worth of valuable timber, but of other 

 property and, in many instances, of lives. 



For this reason the Forest Service de- 

 mands that ever\' one of its forest guards 

 must earn.- an emergency ration with him. 

 The ration consists of three cakes resem- 

 bling chocolate, each cake being one meal. 



The cakes are wrapped separately in 

 tin-foil and are inclosed in an airtight tin 

 case which may be carried conveniently in 

 a saddle bag or coat pocket. The net 

 weight of the ration is eight ounces. It is 



Every ranger in national forests must carry an 

 emergency ration as part of his eqiupment 



the same as that included in the equipment 

 of the United States Army. It is composed 

 of 45.45% chocolate liquor; 7.27% nucleo- 

 casein; 7.27% malted milk; 14.55% ^Z 

 albumen; 21.82% powdered cane sugar; 

 and 3.64% cocoa butter. 



The motorist takes his steering 

 wheel with him when compelled to 

 leave his car standing at the curb 



Removable Steering- Wheel to Foil the 

 Automobile Thief 



ASH IP without a rudder is helpless, and 

 so is an automobile without a steering- 

 wheel. That seems to be the thought 

 behind a new invention designed to prevent 

 the stealing of automobiles left at the 

 curb. The new wheel is easily attachable 

 and detachable, so that the owner can take 

 it with him when he leaves his car. ^^ 

 The wheel differs from the conventional 

 construction in that it has a hub in which 

 is a slot which fits over a similar-sized 

 block rigidly secured to the upper end of 

 the steering post, as shown in the accom- 

 panying illustration. The hub may be 

 locked in place on the block in two differ- 

 ent ways, according to whether the locking 

 bar is integral with the wheel or with the 

 block. In the first method, a small 

 bar is pivoted at one side of the open 

 end of the wheel hub and locked in 

 position over a small pin at the 

 opposite side. In the second method, 

 a small bar is pivoted to the block at 

 the center. As the bar is revolved 

 about its pivot, notches provided at 

 the ends of the bar on opposite 

 sides fit over pins on the hub. 



To prevent a thief from fitting a 

 wheel of his own of the same type, 

 the hub is provided with a socket 

 into which a pin in the block fits. 



