@article{634516,
      note = {Half-title: Mr. Winthrop's two lectures on comets.},
      author = {Winthrop, John,},
      url = {http://library.usi.edu/record/634516},
      title = {Two lectures on comets, read in the chapel of  Harvard-College, in Cambridge, New England, in April 1759.  On occasion of the comet which appear'd in that month. With  an appendix, concerning the revolutions of that comet, and  of some others. By John Winthrop, Esq. Hollisian Professor  of the Mathematics and Philosophy at Cambridge. Published  by the general desire of the hearers. [electronic resource]  :},
      publisher = {Printed and sold by Green & Russell, at their  printing-office in Queen-Street. Sold also by D. Henchman,  at his shop in Cornhill,},
      recid = {634516},
      pages = {44,xviii,[2]p. ;},
      address = {Boston :},
      year = {1759},
}