Summaries of several letters from Cotton Mather to John Woodward and to Richard Waller Concerning 'Biblica Americana', giants, plants of America, power of imagination, cures of several wounds judged mortal, about Native Americans division of time, unusual rainbows and mock suns (parhelia), about apparitions, about rattlesnakes, effects of thunder and lightning, earthquakes, hurricanes, concerning ancient remains at Ammuskeag above the falls of Merimack river where Native Americans hide their provisions; concerning rocks at Taunton by Tiding river, cases of longevity and about calculating the descendants of Adam Referring to Mather's letters EL/M2/21 to EL/M2/33 nd