outlines of two courses of lectures. One of them was given by Dr. Mather, who was a fellow student of Asa Gray’s, and who still, at over eighty, retains a lively recollection of the eager, active young man whom his friends already thought would make his mark in the world; the other by Dr. Gray himself. This was one of the first courses of lectures which he delivered. The ticket-fee was four dollars. He kept through life a certain love for medicine and surgery, and a lively interest in its science and progress. These old studies and the country practice he had with the physician who was always his good friend, Dr. Trowbridge, often served him on his journeys, when a regular practitioner was not within easy reach. [15] Amos Eaton, 1776-1842. Graduated from Williams in 1799. Teacher, lecturer, and author of _Manual of the Botany of North America_, as well as of many reports on geological surveys. [16] College catalogue of Fairfield, 1830-31. [17] Lewis C. Beck, 1798-1853; professor in Albany Academy; author of _Botany of the United States North of Virginia_. [18] Lewis David Schweinitz, 1780-1834; the first American who studied and described the fungi of the United States. He wrote also on other North American cryptogams and carices. [19] John E. Le Conte, 1784-1860; formerly major in United States army. His first botanical publication was a catalogue of the plants on the island of New York, in 1810. He later wrote chiefly on entomology. [20] It appears that in December, 1834, I read to the Lyceum of Natural History my first paper, _Monograph of North American Rhynchosporæ_, and my second, _New or Rare Plants of the State of New York_. They must have been printed early in 1835.--A. G. [21] J. G. C. Lehmann, 1793-1860; professor at Hamburg. [22] George Francis Reuter, 1815-1873; directer of the Botanical Garden at Geneva; curator of Boissier’s herbarium. [23] Edward T. Channing; professor of rhetoric and oratory at Harvard University. [24] Daniel Treadwell; professor in Harvard University of applied physics; distinguished inventor in mechanics, especially in the welding of steel. [25] John H. Redfield; curator of the herbarium of the botanical department of the Philadelphia Academy of Natural Science. [26] _American Jour. Sci._, xxv. 346-350. [27] Dr. Trowbridge. [28] _North American Gramineæ and Cyperaceæ_, of which Part I. was issued in 1834, Part II. in 1835. This was the first separate and individual publication by Dr. Gray. Sir W.J. Hooker said of it:--[It] “may fairly be classed among the most beautiful and useful works of the kind that we are acquainted with. The specimens are remarkably well selected, skillfully prepared, critically studied, and carefully compared with those in the extensive and very authentic herbarium of Dr. Torrey.” [29] Alluding to the then popular squib of Major Jack Downing’s letters.