AGRICULTURAL ENGINEERING.

AGRICULTURE is the greatest of all Z-\ industries, as regards the number of people who busy themselves in it, and is also the most important, since on it ultimately we dtjwnd for our very existence. A single general failure of the world's harvests would depopulate the globe, so small are our reserves of provisions. In former times, when means of distribution were undeveloped, large districts — even whole countries — suffered famine inevitably as the result of crops being ruined by unseasonable weather. Even to-day —witness parts of Russia. India, and China —the same evil recurs with distressing fre quency.