108 NATURE-STUDY REVIEW [7:4— Apr., 1911 



io- Give the essential features of the Darwinian theory. 



PHYSICS 



1. Define specific gravity, energy, molecule, gyroscope, ether. 



2. State the laws of motion. 



3. Explain the rainbow, with diagram. 



4. How is a Fahrenheit thermometer made? 



5. Sketch the common suction pump ; explain its action. 



6. Define specific heat, latent heat, coefficient of expansion, sur- 



face tension, osmosis. 



7. Explain construction of a common electric battery. 



8. Importance of soil capillarity in agriculture. How controlled ? 



9. Explain with diagram the advantage of the pulley. 



10. Name five great physicists, with important contribution of 

 each- 



The above, to one hunting for nature-study, may seem like a 

 modern "puzzle picture", but questions 7 and 9 in zoology are 

 suggestive. Whether "the average teacher" can distinguish — or 

 even name — Jersey, Holstein, Hereford, Light Brahma, White 

 Leghorn, Barred Rock, Collie, Great Dane, Fox Terrier, Perch- 

 eron, Thoroughbred and Hackney, — whether she can or not, it is 

 not a bad bit of capital to be able to do it, and the question, it 

 would seem, is a fair one to put to any intelligent citizen who has 

 had contact with domesticated animals. 



What questions should be asked to ascertain the fitness of a 

 person to teach children through nature-contact? Elementary 

 teachers are examined in arithmetic, not in trigonometry. Should 

 they be required to pass an ordeal in physical nature-study, or in 

 mathematical physics? The Review would be interested to print 

 the ideal set of examination questions to be put to prospective 

 teachers in this field. 



