Popular Science Monthly 



189 



How Much Ought We to 

 Weigh Normally? 



A SIMPLE way to ascertain one's 

 ideal weight was told recently 

 by Dr. Harvey G. Beck, of the Uni- 

 versity of Maryland, in an address 

 before the Los Angeles County Med- 

 ical Association at Los Angeles, Cal. 

 First, put down i lo. Then multi- 

 ply by 53^ the number of inches by 

 which one's height exceeds five feet. 

 Add the result of the multiplication 

 to the original no and the sum is 

 one's "ideal weight." 



When the road-oiling season is over the tank and its 

 fittings may be supplanted by another type of body 



Concrete Drinking Fountain 

 of Novel Design 



THE drinking fountain 

 shown in the illustration 

 has several features that serxe 

 to make it distinctive. It is 

 constructed of concrete and 

 boulders, rough concrete 

 blocks, and similar material. 

 On the side toward the 

 house there is a drinking 

 fountain for the passer-by; the 

 waste water drains from this 

 into the side toward the street where there 

 is a drinking- trough for horses. In this way 

 the problem of the waste from the drinking- 

 fountain is solved. 



A picturesque effect secured with ordinary 

 stones set in concrete in a street fountain 



The oil is heated in the tank and forced out onto the 

 road under pressure through specially prepared nozzles 



Demountable Road-Oiling Tank Saves 

 Truck's Winter Time 



NOT long ago it was considered the up- 

 to-date and progressive thing to own 

 a motor truck for each kind of special 

 ser\ice for which such a truck could be 

 employed. But now the most progressive 

 idea is the truck which can be used in more 

 ways than one, thus reducing the cost and 

 increasing its efficiency. This is usually ac- 

 complished b>- providing two or more bodies 

 to be used interchangeably on one chassis. 

 The road-oiling tank and mechanism 

 shown in the accompanying view is 

 mounted on a separate sub-frame, so that it 

 can be remo^"ed as a unit from the motor 

 truck in less than half an hour. Ten hold- 

 ing-down bolts are removed, and the entire 

 apparatus is lifted off the chassis by an 

 o^'erhead crane. This overcomes the great 

 drawback of mounting equipment of this 

 kind on motor trucks, \Vhen the road- 

 oiling season is over the tank and its fittings 

 may be removed and another type of body 

 fitted in its place. Hence the truck be- 

 comes a money-maker all the year round. 

 Formerly it was a dead loss in winter be- 

 cause the tank was fixed. The tank shown 

 heats the oil and then forces it on the road 

 under pressure through special nozzles. 



