These evidences of the vast extent of the national domain excited both pride and fear. Unless the distant parts could be more closely cemented, the days of Western unrest and foreign intrigue might come again. The demand for government aid to public improvements sprang up anew. Colonel Johnson, attempting to take a small fleet of steamboats up the Missouri to the Yellowstone in 1819 to open a new route for trade with China by way of the Columbia River, was hindered by sand-bars and snags, or "planters." Various improvements in rivers and the construction of canals undertaken by different States were reported in Congress. Government aid in the shape of subscriptions to stock was contemplated in some cases. Gallatin's report of 1809, recommending the expenditure of twenty million dollars on public works, was reprinted. The Cumberland Road was given over three hundred thousand dollars in a single appropriation. Two and a half million dollars were spent annually on the navy. Various arguments were used to harmonise these expenditures with the economic principles of the Republicans. Twenty ships-of-the-line could be built, it was said, for much less than the cost of drafting the militia and the losses in a single State during one year of the recent war. Ten thousand seamen afloat would be of more service than fifty thousand militia in preventing "a foreign enemy ever again polluting the shores of the United States." The only danger to this policy would be in putting such a power into the hands of the Chief Executive; but this could be averted, it was declared, by the ballot. National feeling ran high, as it usually does following a war, over both national defence and home development. In the midst of this great impetus toward nationality came a sudden revelation of the sectional discord which it was hoped had been laid for ever. A vast extent of territory has its advantages in wealth and population; but it also has its dangers in the differences of climate, products, and labour thereby engendered. The United States could not hope to be free from this menace, common to all governments with extensive domains, until time had proved the necessity for union, and use had made its burdens appear lighter. Sectional jealousies had been quieted in the Convention of 1787 by establishing "balances" in representation and taxation. It was unfortunate to recognise the existence of sections and to perpetuate them in this manner; but compromise was the only way possible at the time. [Illustration: View of the Capitol of the United States. THE CAPITOL BURNED BY THE BRITISH ARMY. From Torrey's "American Slave Trader." Justice looks from the sky in retribution upon a nation which permits the slave trade to be carried on almost within the shadow of the Capitol.]