236 



Popular Science Monthly 



A 



Inclined platforms leading to the roof of the goat-house 

 were built to indulge the climbing instincts of the goats 



Wild Goats Live on the Roof of 

 Their Building 



THE efforts of wild animals in captivity 

 to follow their natural instincts were 

 amusingly illustrated recently by the antics 

 of some wild goats in a Western Zoological 

 Park. 



Six of the goats 

 were captured and a 

 loghouse, surrounded 

 by a high wire fence, 

 was specially con- 

 structed for them in 

 the" zoological park. 

 For a long time, how- 

 ever, they were ill at 

 ease and made des- 

 perate efforts to scale 

 the wire fence. Find- 

 ing this impossible, 

 they finally attempt- 

 ed to climb up the ' 

 sides of their log 

 house. This taught 

 their keeper that they 

 were not trying to es- 

 cape but were merely 

 following their in- 

 stinct for climbing. 

 So he built inclined 

 platforms leading to 

 the roof of the build- 

 ing. As soon as these 

 were finished the 

 goats scampered to 



the roof, evidently This au tomobile lock, similiar to ordinary safe 



enjoying themselves. combination, is capable of 87,000 variations 



If You Use This Lock, 



Don't Forget the 



Combination 



NEW lock for the 

 automobile works on 

 a simplified form of the 

 combination principle 

 commonly used in safes. 

 By a combination lock the 

 self-starter, battery and 

 magneto circuits are con- 

 nected and disconnected 

 within a steel case on the 

 instrument board. With 

 the same operation a valve 

 in the gasoline lead is 

 opened and closed by 

 means of a steel wire in 

 metal housing extending 

 from the lock on the in- 

 strument board to a valve which is located 

 in the gasoline lead. 



When the driver wants to lock his car 

 he gives the operating handle, mounted just 

 below the combination knob, a half turn to 

 the off position and all ignition is instantly 

 disconnected and the gasoline cut off. 

 When the driver wants to unlock his car 

 he simply turns the 



combination knob to 

 the three-number 

 combination he has 

 set and all the igni- 

 tion is connected and 

 the gasoline valve 

 opened. 



The lock is capable 

 of more than 87,000 

 distinct changes in 

 the combination, so 

 that it would waste 

 time for even an ex- 

 pert to find the right 

 one unless he knew 

 it in advance. 



When a car is 

 locked there is no loss 

 of gasoline through 

 dripping, for there is 

 no pressure on the 

 carbureter. The lock 

 also prevents "back- 

 fire" setting a car 

 afire; for when "back- 

 fire" occurs you 

 simply turn the lock 

 off and the carbure- 

 ter is disconnected. 



