THREE:Halley's quadrant was constructed and made known by him to the Philosophical Society, in 1731, though Thomas Godfrey, a glazier, of Philadelphia, is said to have made a similar instrument a year before. As early, however, as 1727 Newton had described such an instrument to Halley, that is, a very little time before his death. This invaluable instrument has since been improved, first into a sextant, and ultimately into a complete circle. In 1758 appeared John Dollond's corrections of Newton's views of the dispersion of refracted light, and in the following year his achromatic telescope, based on his accurate discoveries.As in the whole history of the world, perhaps, so great a calamity as the Irish famine never called for sympathy and relief, so never was a more generous response elicited by any appeal to humanity. The Government and the Legislature did all that was possible with the means at their disposal, and the machinery that already existed, or could be hastily constructed, to meet the overwhelming emergency. The newly established Poor Law system, though useful as far as it went, was quite inadequate to meet such great distress. It had been passed while the country was comparatively prosperous, and contained no provision for such a social disorganisation as this famine. By the Acts of 1 and 2 Victoria, c. 56, no outdoor relief whatever could be given in any circumstances. The size of the unions was also a great impediment to the working of the Poor Law. They were three times the extent of the corresponding divisions in England. In Munster and[544] Connaught, where there was the greatest amount of destitution and the least amount of local agency available for its relief, the unions were much larger than in the more favoured provinces of Ulster and Leinster. The union of Ballina comprised a region of upwards of half a million acres, and within its desert tracts the famine assumed its most appalling form, the workhouse being more than forty miles distant from some of the sufferers. As a measure of precaution, the Government had secretly imported and stored a large quantity of Indian corn, as a cheap substitute for the potato, which would have served the purpose much better had the people been instructed in the best modes of cooking it. It was placed in commissariat dep?ts along the western coast of the island, where the people were not likely to be supplied on reasonable terms through the ordinary channels of trade. The public works consisted principally of roads, on which the people were employed as a sort of supplement to the Poor Law. Half the cost was a free grant from the Treasury, and the other half was charged upon the barony in which the works were undertaken. The expense incurred under the Labour Rate Act, 9 and 10 Victoria, c. 107," amounted to 4,766,789. It was almost universally admitted, when the pressure was over, that the system of public works adopted was a great mistake; and it seems wonderful that such grievous blunders could have been made with so many able statesmen and political economists at the head of affairs and in the service of the Government. The public works undertaken consisted in the breaking up of good roads to level hills and fill hollows, and the opening of new roads in places where they were not requiredwork which the people felt to be useless, and which they performed only under strong compulsion, being obliged to walk to them in all weathers for miles, in order to earn the price of a breakfast of Indian meal. Had the labour thus comparatively wasted been devoted to the draining, subsoiling, and fencing of the farms, connected with a comprehensive system of arterial drainage, immense and lasting benefit to the country would have been the result, especially as works so well calculated to ameliorate the soil and guard against the moisture of the climate might have been connected with a system of instruction in agricultural matters of which the peasantry stood so much in need, and to the removal of the gross ignorance which had so largely contributed to bring about the famine. As it was, enormous sums were wasted. Much needless hardship was inflicted on the starving people in compelling them to work in frost and rain when they were scarcely able to walk, and, after all the vast outlay, very few traces of it remained in permanent improvements on the face of the country. The system of Government relief works failed chiefly through the same difficulty which impedes every mode of relief, whether public or privatenamely, the want of machinery to work it. It was impossible suddenly to procure an efficient staff of officers for an undertaking of such enormous magnitudethe employment of a whole people. The overseers were necessarily selected in haste; many of them were corrupt, and encouraged the misconduct of the labourers. In many cases the relief committees, unable to prevent maladministration, yielded to the torrent of corruption, and individual members only sought to benefit their own dependents. The people everywhere flocked to the public works; labourers, cottiers, artisans, fishermen, farmers, men, women, and childrenall, whether destitute or not, sought for a share of the public money. In such a crowd it was almost impossible to discriminate properly. They congregated in masses on the roads, idling under the name of work, the really destitute often unheeded and unrelieved because they had no friend to recommend them. All the ordinary employments were neglected; there was no fishing, no gathering of seaweed, no collecting of manure. The men who had employment feared to lose it by absenting themselves for any other object; those unemployed spent their time in seeking to obtain it. The whole industry of the country seemed to be engaged in road-making. It became absolutely necessary to put an end to it, or the cultivation of the land would be neglected. Works undertaken on the spur of the momentnot because they were needful, but merely to employ the peoplewere in many cases ill-chosen, and the execution equally defective. The workers, desirous to protect their employment, were only anxious to give as little labour as possible, in which their overlookers or gangers in many cases heartily agreed. The favouritism, the intimidation, the wholesale jobbing practised in many cases were shockingly demoralising. The problem was to support 2,000,000 or 3,000,000 of destitute persons, and this was in a great measure effected, though at an enormous cost to the empire.
宝宝健康饮食是成长的关键，为了满足其生长发育所需要的各种营养，就必须对日常饮食做出合理安排。黄瓜和胡萝卜中含有丰富营养素，让宝宝吃得健康！
