598 



A Lumbermen's Camp Which Can Be 

 Moved from Place to Place on Rails 



IN his account of the life of the rough and 

 ready northern woodsman, Rex Beach 

 often painted a realistic picture of his 

 poorly-constructed and unsanitary home. 

 As a rule, lumber camps enjoy but a tem- 

 porary existence, and for this reason the 

 houses are ramshackle affairs. The logging 

 crew live in them a few weeks and then 

 move on to another camp. The old camp 

 is left at the mercy of the elements and no 

 attempt is made to 

 repair it, unless the 

 loggers happen that 

 way again. 



I n Ever e 1 1 , 

 Washington, the 

 temporary camp 

 has been replaced 

 by a permanent 

 mobile camp con- 

 sisting of railroad 

 coaches. The 

 coaches include 

 kitchen, dining and 

 bunk rooms for the 

 men, blacksmith 

 shop, engineers' and 

 administrative offi- 

 ces, as well as 

 equipment for heat- 

 ing, lighting and 



Popular Science Monthly 



The interior of the blackmith shop in the portable 

 logging camp. There are facilities for every kind 

 of mechanical work that could possibly be needed 



water supply systems. 

 When the logging company wishes to move 

 its camp to another part of the country, the 

 cars are taken to that section by locomo- 

 tives. Thus the camp cost is not only 

 cheaper, but the men live amidst surround- 

 ings that are as near ideal in point of con- 

 venience as the local conditions permit. 



One car 

 supplies 

 steam which 

 heats all the 

 cars, and an- 

 other car con- 

 tains a dyna- 

 mo which 

 p r o vid es 

 current for 

 one hundred 

 and sixty- 

 four incan- 

 descent 

 lights. A 

 third car is 

 devoted to 



bathrooms -j>his logging camp consists of railroad coaches which have 



and laundry. their own heating and lighting plant. The camp is portable 



Pointers for the Inventors Working on 

 the Submarine Problem 



THE Naval Consulting Board has re- 

 ceived literally thousands of sugges- 

 tions and plans for destroying submarines 

 and protecting merchant ships against 

 torpedo attack. In addition, the Secretary 

 of the Navy has also heard from inventors 

 on the subject. The Naval Consulting 

 Board has considered these plans and 

 apparently has come to the conclusion 

 that most if not all of them are worthless. 

 In Bulletin No. I 

 which was published 

 recently by the Sec- 

 retary of the Con- 

 sulting Board, No. 

 13 Park Row, New 

 York city, and which 

 bears the title "The 

 Submarine and Kin- 

 dred Problems," the 

 difficulties that must 

 be considered by the 

 inventor are in- 

 structively summar- 

 ized. That Bulletin 

 ought to be in the 

 hands of every man 

 who thinks that he 

 has solved the sub- 

 marine problem. It 

 disposes of the electromagnetic devices 

 suggested for detecting and destroying 

 submarines; it dismisses the idea of "charging 

 the sea with electricity"; considers the best 

 and worst methods of protecting a ship 

 against submarine attack ; dwells upon the 

 airplane as a device for discovering the sub- 

 marine ; comments on underwater sound-re- 

 cording de- 

 vice, work- 

 ing on the 

 microphone 

 principle ; 

 brushes aside 

 the use of 

 nets or 

 screens as a 

 protection 

 for cargo- 

 carrying 

 ships, and 

 points out 

 the merits 

 and defects 

 of present 

 methods of 

 destruction. 



