January, all, save what are artificially irrigated, fail.[18] If they fail in one district or province, the people have few equivalents to offer for a supply of land produce from any other. Their roads are scarcely anywhere passable for wheeled carriages at _any season_, and nowhere _at all seasons_--they have nowhere a navigable canal, and only in one line a navigable river. Their land produce is conveyed upon the backs of bullocks, that move at the rate of six or eight miles a day, and add one hundred per cent. to the cost of every hundred miles they carry it in the best seasons, and more than two hundred in the worst.[19] What in Europe is felt merely as a _dearth_, becomes in India, under all these disadvantages, a scarcity, and what is there a _scarcity_ becomes here a _famine_. Tens of thousands die here of starvation, under calamities of season, which in Europe would involve little of suffering to any class. Here man does everything, and he must have his daily food or starve. In England machinery does more than three- fourths of the collective work of society in the production, preparation, and distribution of man's physical enjoyments, and it stands in no need of this daily food to sustain its powers; they are independent of the seasons; the water, fire, air, and other elemental powers which they require to render them subservient to our use are always available in abundance. This machinery is the great assistant of the present generation, provided for us by the wisdom and industry of the past; wanting no food itself, it can always provide its proprietors with the means of purchasing what they require from other countries, when the harvests of their own fail. When calamities of season deprive men of employment for a time in tillage, they can, in England, commonly find it in other branches of industry, because agricultural industry forms so small a portion of the collective industry of the nation; and because every man can, without prejudice to his status in society, take to what branch of industry he pleases. But, when these calamities of season throw men out of employment in tillage for a time in India, they cannot find it in any other branch, because agricultural industry forms so very large a portion of the collective industry of every part of the country; and because men are often prevented by the prejudices of caste from taking to that which they can find.[20]