Word: exact
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Dates: during 1910-1919
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...excavations in Massachusetts avenue for the Cambridge subway. For a few hours the stones were to be seen in their original places after having been covered for more than 275 years; then they disappeared therefrom forever, and one more link with the past was broken. But the exact position of the stones was measured and recorded, and when the street pavement was restored, the Railroad Company caused yellow bricks to be inserted to mark the sites...
...University headquarters, which will be maintained, through the entire duration of the Fair, a man will be in charge who will have a record of the exact addresses of all Harvard men in California, in order to aid strangers in finding their friends in the community...
Because many Seniors do not know the exact nature of the Class Album, a copy of last year's book has been placed at the Co-operative Branch for public inspection...
...before Saturday. The sooner the cards are handed in the better; for it will take some time to file and check the large number of applications, mail invitations, and distribute dance cards and tickets. The invitation committee will hold office hours in the Union at an early date, the exact time to be announced later...
...simple linear quantitative relationship between the exact amount of radioactivity and the atomic weight was found. The ultra-violet spectrum of a typical specimen appeared to be exactly identical with that of ordinary lead. The necessary inference seems to be that lead from radioactive sources consists of a mixture of at least two substances, of which one is ordinary lead. The foreign substance must be very similar to ordinary lead and very difficult if not impossible to eliminate by chemical means; for many precautions were taken to purify the samples. This substance cannot be identified in the ultra-violet spectrum...