The views of Dr. Kraft were more or less disputed by several Norwegian physicians in the United States, in _The North_ for January and February, 1893. Dr. Harold Graff, writing to the periodical in which Dr. Kraft's article originally appeared, says: "With astonishing rapidity, the wide mouth and ungainly nose of the specific Norwegian peasant type become modified and disappear, the difference between the physiognomy and facial expression of parents and children being often bewilderingly great.... I have interviewed some of the oldest and most experienced physicians practising in this country, and also other intelligent Norwegians who have travelled among their countrymen in the States, without as yet having heard any divergent opinion whatever. All agree that the Norwegian race in every respect is progressing in both mind and body."[251] Others, who were not so sure of the physical improvement, agree as to the intellectual quickening. In a word, if the transplanting of the tree has not certainly produced an improved trunk or foliage, it has bettered the quality of the fruit. The next logical step is to attempt to estimate the value of such fruit in the American market. [251] _The North_, Jan. 18, 1893, translating the article mentioned. The two obvious ways of determining the influence of a foreign element, are to compare it with some other foreign-born constituent longer and better known, and to compare it with the native American. The latter is the fairer criterion, but it is not easy to ascertain and define what are the purely American characteristics with which comparison is to be made. Statistics on social matters are so incomplete that reliance must be placed upon the consensus of opinion of thoughtful, sympathetic observers and students of American life, whether they be statesmen and philosophers bred in the United States, or scholarly, penetrating foreigners like James Bryce and Alexander de Toqueville.[252] Such men of insight agree that the American ideal comprises love of freedom, independence, and equality; respect for law, government, education, and social morality (including reverence for the family and the home); and lastly a willingness to share the common burden and, if need be, to make a common sacrifice for the permanent welfare of the commonwealth. [252] Bryce, _American Commonwealth_ (3rd ed.), ch. lxxx; Matthews, _American Character_, 20-34; Roosevelt, _American Ideals_, ch. i, ii.