Other references to the literature may be found by consulting Harnack's Altchristl.
Having reached so far as to perceive that the central force of the solar system must decrease inversely as the square of the distance, and applied vainly to Wren and Hooke for further elucidation, he made in August 1684 that journey to Cambridge for the purpose of consulting Newton, which resulted in the publication of the Principia.
Finally four days after the safe-conduct had been despatched the emperor revised this second edict, limited it to the seizure of Luther's books, and published it on his own authority without consulting the diet (loth March).
At Lafayette he introduced the first carefully scientific study of English in any American college, and in 1870 published A Comparative Grammar of the AngloSaxon Language, in which its Forms are Illustrated by Those of the Sanskrit, Greek, Latin, Gothic, Old Saxon, Old Friesic, Old Norse and Old High German, and An Anglo-Saxon Reader; he was editor of the "Douglass Series of Christian Greek and Latin Classics," to which he contributed Latin Hymns (1874); he was chairman of the Commission of the State of Pennsylvania on Amended Orthography; and was consulting editor of the Standard Dictionary, and in 1879-1882 was director of the American readers for the Philological Society's (New Oxford) Dictionary.
In some islands each clan, or each village, would feel itself at liberty to make war on another clan or village without consulting the views of any higher authority.