Baron Pohlsen arrived, and was duly installed at Mrs. Hilbrough's. He was greatly pleased with the hospitality shown him by this wealthy household, and fancied that Americans were the most generous of peoples. Millard, as in duty bound, took pains to introduce him in many desirable quarters, and showed him the lions of the city in Hilbrough's carriage. But in spite of Millard's care to relieve him, Hilbrough afterward confessed that the panic of 1873 had not taxed his patience and cheerfulness so deeply as this entertainment for two weeks of a great German antiquary. Dutifully the banker attended a session of the Geographical Society to listen to an address made by his guest in broken English, on the ancient importance of Uxmal and Palenque. Hilbrough also heard with attentive perplexity the Baron's account before the Historical Society of the Aztec Calendar Stone, and his theory of its real purpose. When the American banker was left alone with the learned High Dutchman, it became very serious business. Von Pohlsen, with all his erudition, was extremely ignorant of the art of banking as practised in New York. He did not know, at least in English, the difference between collateral and real estate security, and "gilt-edged" paper was more foreign than papyrus to him. Nor could Hilbrough interest him much in the remarkable rise in Brooklyn real estate since 1860. Brooklyn was too new by a millennium for the Baron to care for it. Hilbrough tried the plan of shunting the antiquary to his main lines of American hieroglyphs, aboriginal architecture, and Pueblo domestic economy. But this only shifted the difficulty, for under the steady downpour of Pohlsen's erudition, Hilbrough had continually to change position, now putting the right knee over the left and now placing the left atop, to keep from nodding, and he was even reduced to pinching himself, sometimes, in order to keep awake, just as the learned and ingenious Baron had got his pyramid of inference ready to balance on its rather slender apex of fact. Archaeology was new to Hilbrough, and deductive profits so large from inductive investments so small always seemed to the financier to indicate bad security. Mrs. Hilbrough, clever woman, appeared to understand it all. She had crammed on a copy of Stephens's "Travels in Yucatan" that had belonged to her father, and she gave Pohlsen no end of pleasure by asking him about such things as the four-headed altars before the great idols at Copan, and the nature of the great closed house at Labphak. If you will look in Pohlsen's book of travels in America (Reise durch Amerika: Leipzig, 1888) you will discover in his chapter on New York that in this metropolis the ladies take a remarkable interest in science, and are generally better informed regarding such matters than their husbands, these latter being deeply immersed in mere dollar-hunting.