256 
Mechanical Action of Light. 
[April, 
Nor must we forget that the more rigidly we scrutinise our 
received theories, our routine explanations, and interpreta- 
tions of Nature, and the more frankly we admit their 
shortcomings, the greater will be our ultimate reward. In 
the practical world fortunes have been realised from the 
careful examination of what has been ignorantly thrown 
aside as refuse ; no less, in the sphere of Science, are repu- 
tations to be made by the patient investigation of anomalies. 
