A notable percentage—about one-third, I think—of the power of a steam engine is used up in overcoming the friction of its own Hence inventors are constantly testing davie to reduce friction. Yet they can never over. come it; and the resistance created by it Tepresents power (and hence expense also) absolutely lost.
Now the human body is, a machine propelled by heat, exactly as an engine li Enything that retards it may be considered as friction, Very good, then, Yon have noticed great differences in your own vigour. Some days you work easily, and on others with difficulty. This is whether you are chiefly a muscle-worker o brain-worker; or a mixture of both—as. most people ure. Occasionally you are able to do more work ina day than at other times you can do in three, It is the odds between Walking on smooth, hard level ground and Gragging yourself uphl through wet clay. What wouldn't lawyers, authors, clergymen, and all other brain-workers give for something having the power to keep their minds clear and strong? Or body-workers for some-_ thing that would prevent aching, weakness, and fatigue? Do I know what will do it? No, I don't. If I did I could retail the secret for more money. than is stowed away in the and will tell it you in a minute—for nothing, Bank of England, But I do know one thing,
Text read from the printed page and cleaned; old type leaves the occasional error.