VIII I'.Ktl.'UAiMllCAI- SKI.TCII Ol* 



leans 111' icacJHd < "iiirimiai i alitiiil llicciid i)\.' I h'cciiilK'r, lS."i(). 

 rpoii tlic r(sl(»iati(in ol" his licallli lie piinliascd a j<»int intci-- 

 csi with his hrothcis in a I'ai-Mi in ('larkc count v, Indiana, 

 and in lsr)2 he was niaia-icd. 'I'lic iiardslnjis to w liidi he had 

 Iteen ( xposed in California had lendeicd liini siilijert to at- 

 tacks (d' i-heuinatisin ami it soon Ik canu' evident that a fann- 

 er's life was to him iin[»(>ssilde. .Vccordin^lv lie removed to 

 Louisville, whi'i-e, after a short time, he ohtained a jxisition as 

 assistant in a (Jei-niaii aiiothecarv cstahlishnH^it, and aftei- a 

 year's service here he Lecame a niemher of an American linn. 

 The business was mucli to his likinu, and he soon renewed his 

 interest in hotany, niakin;; tlie acciuaintance of Leo Lesiiuer- 

 eux, through whose intlnence he directed his studies to the 

 mosses. An atta(dc of neurali;ia, which affected the heart and 

 confined him to his bed for a hmj*- time, warned him that his 

 complete recovery would be slow in the chanjieable climate of 

 Louisville, and he was advised by his physician to i»() South. 

 He was thus aj4,ain obliged to give np all the results of foui- 

 years' profitable business and seek a new home. He went first 

 to Louisiana, but not finding relief there, he proceeded to 

 Vera Cruz, which he reached after a four weeks' voyage, early 

 in the year 1857. Here he l)ecame interested in a jiharmaceu- 

 tical business, but on the approach of the rainy season decided 

 to remove to the highlands between Cordova and Orizaba, 

 where he was the guest of his countryman, Herr Sartorius. In 

 the autumn of 1857, in consequence of a political revolution in 

 Mexico, he returned to the United States and established him- 

 self in the drug busine^ss in Mobile, Alabama. This 

 profitable business suffered greatly during the Civil 

 War, but meanwhile Mohr was employed by the Confed- 

 erate government in manufacturing drugs from native resour- 

 ces and in testing the uuMlicinal preparations smuggled into the 

 country from Europe. 



Towavds the end of 1860, at the request of Leo Lesquereux, 

 Dr. ]Mohr had begun his study of the mosses of Alabama, and 

 a complete catalogue of these plants was contributed by him 

 to the "Mosses of North America," published in 1884, A col- 

 lection of the ferns of South Alabama was nmde at the same 

 time, and thoroughly worked up, and the results turned over 

 to Prof. Eaton for his "Ferns of North America." 



In addition to these botanical works. Dr. Mohr, undertook 

 in the interests of the "Grangers,'' many investigations of the 

 fertilizing value of the ashes of the various woods of Alal)ama, 

 and of pine straw and leaves, and of the hulls of cotton seed. 

 He also delivered many lectures and wrote many articles on 

 subjects connected with the improvement of the exhausted 



