796 



62-65%, 62-34%. N: 8-20%, 8-76%, 8-57%. Fe: 8-80° /0 , OC 2 H 5 

 traces. 



Moerners haemin. I ' préparation. IVa Hters of water were heated 

 to 9o°, acidulated by adding 50cm 3 1% solution of H 2 S0 4 , and mi- 

 xed with 500cm 3 of blood. The precipitate was filtered ofF in a fil- 

 ter press, mixed with 250cm 3 of alcohol and pressed again. The pu- 

 rified precipitate was next. mixed with 800cm 3 of alcohol to which 

 8cm 3 of conc. sulphuric acid were added, stired for an hour and 

 filtered. The nitrate heated to the boil, 4cm 3 of 25°/ hydrochloric 

 acid added. and left to crystallize. The crystals obtained were not 

 well developed, they possessed the shape of needles; uncrystallized 

 matter was also présent. The analysis gave: 6334. 6310. 63 79°/ C, 

 849%. 8-54% N and 1-72, 1-81% OC 2 H 5 . 



Second préparation. The procédure differed from the foregoing 

 in as mueh. as the addition of hydrochloric acid took place in the 

 cold and the liquors left to crystallize at a température of 25°. 

 In this manner nearly rectangular plates were obtained which, on 

 being analyzed. gave 63-21%. 63-28% C; 8-69% N 8-70% N. 

 1-06%OC 2 H 5 , 113%0C 2 H 5 . 



Third préparation. The treatment with hydrochloric acid took 

 place this time at a still lower température namely at 14°. and 

 the solution left at this température for 24 hours. The precipitate 

 obtained has been amorphous and could not be crystallized either 

 from acetic acid or alcohol. 



The fourth préparation was obtained similarly to the second, but 

 the treatment with hydrochloric acid took place at the température 

 of the boil and kept at it for 1% hours. The substance obtained 

 was amorphous and gave on being analyzed 64-76% C. 754% N, 

 3-61%OC 2 H 5 . 



The fifth préparation, was obtained like the second, but the 

 treating with hydrochloric acid took place at 50°. Well developed 

 crystals were this time obtained. which resembled those of the 

 second préparation, and did not appreciatly alter, even at the boil, 

 by hydrochloric acid. The crystals were next recrystallized using 

 a method similar to that of Schalfejew, but with the différence, that 

 instead of quinine, dilute ammonia, and instead of chloroform water 

 had been used, (4 gr. haemin. 5cm 3 ammonia and 200cm 3 H 2 0). 

 The solution has been filtered quickly and poured into boiling 

 acetic acid, which had been previously saturated with sodium chlo- 



