public work the Civil War intervened, putting a stop to all such beneficent pursuits. Doctor Peter unhesitatingly and warmly upheld his adopted country against secession. Unable to take the field with his friend, Ethelbert Dudley, he promptly fell into the ranks of Dudley's Home Guards, shoulder to shoulder with Benjamin Gratz, Madison C. Johnson, David A. Sayre, and other such fellow-citizens.[74] He was appointed Acting Assistant Surgeon in charge of Military Hospitals at Lexington, Kentucky, being most of the time senior surgeon in charge, quickly bringing his hospitals to a high state of order and efficiency. It was this gift of reducing to system, combined with untiring energy and diligence, which in his long life tended to make all his work both rapid and successful. Thus he carried on simultaneously numbers of analyses with immense saving of time, while other chemists went through each operation separately--making his results almost beyond belief. When, after the war, the survey was resumed under Professor N. S. Shaler, Doctor Peter prepared three chemical reports of his analytical work, 1873-78. A total of four hundred and seventy-seven pages, containing eight hundred and seventy-one analyses. In the survey continued under the late John R. Procter, he prepared six reports, five of which were published, covering five hundred and eighty-eight pages, describing nine hundred and seventy-seven analyses--a total of one thousand, eight hundred and forty-eight published analyses. The sixth report--the ninth of the new survey--made to Procter, was not published for the lack of funds, and the manuscript seems to have been lost. The analyses, of which there are about four hundred, will be published, however, by the present able director of the newly resumed Geological Survey, Professor C. J. Norwood, in as nearly the original form as can be restored from the records. Thus, with the one assistant, Doctor Peter made for the new survey about two thousand, two hundred and fifty analyses. Besides which, during his active life in Lexington, he had at all times considerable practice as consulting and analytical chemist, making for individuals many analyses not included in the above. As a toxicologist he had a high reputation, and his expert testimony usually carried the day in cases wherein he was called. At the time of the First Kentucky Survey, under Doctor Owen, Doctor Peter had also contributed to the second report of a Geological Reconnoissance of the Southern and Middle Counties of Arkansas, made during the years 1859 and 1860, an octavo volume of four hundred and thirty-three pages, in which he gives the history of two hundred and seventy-one chemical analyses made by himself of soils, subsoils, under-clays, nitre-earths, etc., of Arkansas, with remarks in one hundred and twenty-five pages of report. At the same time he made chemical analyses of thirty-three soils, subsoils, etc., of the State of Indiana for the survey of that