[This includes the first proving by Dr. Burt, published in this work under Boletus .] Polyporus officinalis, Fries. Natural order , Fungi. Common names , Larch agaric. Preparation , Tincture of the fresh plant. Authorities. 1 , Dr. Burt, Am. Hom. Obs., 1868, p. 116, took 25 grains of 3d dec. trit., at 10 A.M. and 9 P.M. (first day); 20 grains, crude, 10 A.M. (second day); 30 grains (third day); 40 grains (fourth day); 32 grains (fifth day); 50 grains (sixth day); 1 a , same, second proving, continued four days, the first day took 115 grains; 2 , F. A. Lord, Am. Hom. Obs., 1868, p. 60, repeated dose of 1st dec. trit., for five days; doses, 1 to 20 grains; 2 a , same, one dose of 40 grains, 1st dec. trit.; 2 b , same, took crude, 10 grains, at 6 and 9 P.M., first day, at noon second day; morning, 20 grains, at noon fifth day; 40 grains, sixth day; 2 c , same, one dose of 20 grains, crude; 2 d , same, 40 grains, crude; 3 , R. C. Smedley, took 3d dec. trit. for three days, 5 to 100-grain doses, then 1st dec. trit. for two days, 80 and 100-grain doses, then crude, 20 to 50-grain doses for two days; 4 , J. B. Wood, took 1st trit. for six days, 1 to 100-grain doses; 4 a , same, subsequently took crude, 5 to 20-grain doses; 5 , E. Cooley, took crude, 10 to 25-grain doses; 6 , E. Miller, took 1st trit. 50 grains, first and second days; 25 grains, third day; 60 drops, 1st dil., fourth day; 100 drops of tincture, sixth day.