NOTE ON MR. SORBY 'S SPECTRUM ANALYSIS OF THE BLOOD. 1039 



Except when specially requisite, only the symbols . . .,--, , are 

 employed for the sake of simplicity, and then as signs of their relative 

 rather than of the absolute amount of absorption, and it is assumed that 

 there is a gradual shading off from one tint to the other, unless the contrary 

 is expressed. This is done by a small vertical line over the figure, which 

 shows that there is a well-marked division between them. Definite narrow 

 absorption-bands are indicated by * printed over their centre. This will be 

 better understood by a description of the spectrum of deoxidized Hrematrn. 



O " 



=3 >.-H 



^ 3 



13 > 35 



C n*"3 3? ( 5 



cs s j2 -S 



J -^ ^ ^ 



&0 ^S T3 " 2 



C ' ^ ^ ^ G 



| * ^25 



- C 13 C t3 



rrf S '& ~' ^ 



oi ^- i> ^- ' o> 



t- ^ t. -= h -? *^ 



os r? =3 ^ *^> 



^ S ,2 " 



O l> 5 S O C5 



4j_5 5J . . . 6| 9 . . 10- -11- 



The reader will now be enabled to understand the accompanying notation 

 of the figure on page 249. 



1. Sorby's standard spectrum. 



2. Oxidized hemoglobin, 3| 4f 4| 5| 8.-9 



3. Haemoglobin with CO,, 3f 4* 4; of 8.-9 



* 



4. Deoxidized haemoglobin, 3|. . . .4--5J- 9-10 



5. Bloodstain several years old, If . . . 2f- 3.-4 



6. Acid solution of hoematin, 1J . . . 2J 3J.-4 



7. Ammoniacal solution of hasmatin, . . . . 3J .-4 





8. Deoxidized ammoniacal hsematin, , . . . 4 5 5f--6f 9. -10 



