CHEMICAL BASIS <>r mi; ANIMAL J'.oDV. l:: 



^-albumin in their oviicral reactions, l.ut tin- difference of 

 the two is clearly shewn by tin- following statement.- ; 



1. When t'n-.- from -alts and in 1 1%"> p.c. s.ilutiun it ci.a^u- 



'ii heating to 50. The addition of sodium chloride raises 



the coa^ulatm- l'"int to 75 80 . 1 Under thr conditions in 



which it occurs in serum it is not found to shew aiiv opalesccnce 



on heating at any temperature below 60, and it nia\ rded 



oagulating completely at 75. 



I'.y fractional heat-coagulation <.f serum freed I'mm ..rlc.bulin Halli- 

 burton- lias obtained e\ id.-nee of th- e\i-tenee in the scnun of maiiv 

 animals of three albumins coagulating at 70-73, 77-7* . and S'j 

 in .-OKI serum only two ( ,f these albiiinins nccur. 



'_'. It is iij^t reudilv (Mia^ulateil by alrnhol._i.r precijiitated by 

 ether: e^-alluiiniii is, and must readily by alcohol. 



.".. It is ditlieult tn makt' any one definite statement as i<> the 

 specific rotatory pn\v ( -r of serum-albumin since it appear< t> ditler 

 fur the substance as obtained from dilVerent animals. Starke 

 oive- it as (o) D = 62'6 for human scrum-albumin, and i 

 iiat of the horse. 



4. It is not very readily precipitated by strong hydrochloric 

 , and the precipitate is readily soluble on the further addition 

 <>f acid: the reverse is the case for c^u-a 



.". Precipitated or coagulated serum-albumin is more rcadijv 

 soluble in nitric acid than is c^rr-^ 



('.. When precipitated by alcohol it is, a- aln-ad\ 

 immediately though it is ultimately c..aoiilated by the action of 

 the precipitant, than is eo 



7. According to (Jauthiei-' 1 the follouiim reagent 

 c^'o albumin but not serum-albumin : L'" 



;!|-hat.- of copper 1 p.c. : 700 <-.<-. glacial a- 



To be added ill the ratio of ]() c.c. to '_' . . uf the fluid t" be 

 I. 



S. Ivj'-i-alliiiiiiin if injected subi'iitaneously or into a VC.H. 

 ain'eai-s unaltered in the urine; scrum-albumin similarly inJL'c^ed 

 does not thus normally pass out by Mu kidney, 



Si-nuii-albjiniin is found not only in blood-serum, but also jp^ 

 IviniVltT both that contaiiiedln tip- proper lymphatic channel 



. . r<.ntirin--il t.\ I l:illil'iirt..ii. .//. /V, v i..'. Vol. 



1 Stark-, la ,' 8 I- 



- .//. /'///>/,./. v..l. \. i-x-i. |. i :._'. Mm - .'- v-'l \i 1 1 -'.mi. | 

 i Ifalr'i /. i: : \ . , :ii. 



