496  Forms  of  Albumen  in  Urine.  {Am'octur"i887.arm' 
In  the  rule  previously  given,  there  are  directed  110  cc.  of  lime- 
water  rather  than  100,  in  order  to  facilitate  analytical  calculations. 
110  cc.  of  lime-water  contains  0*14003  gm.  of  CaO,  that  corresponds 
to  0*15  of  urea;  this  number  is  easy  to  remember,  while  the  same  can 
not  be  said  for  the  number  0*1363  (urea)  corresponding  to  the  lime 
(0*1272)  contained  in  100  cc.  of  lime-water. 
In  conclusion,  the  subjoined  equivalent  table  is  given,  in  which  is 
stated  the  quantity  of  urea  contained  in  a  liter  of  any  possible  sample 
to  be  examined,  indicated  by  the  number  of  cubic  centimeters  of  the 
oxalic  acid  solution  used  to  neutralize  10  cc.  of  the  lime-water. 
6*  o3^  o  ^  ^  o 
4-0  42-00  5*0  3375  6-0  25-50  7*0  1725  8*0  9"00 
4-1  41-20  5-1  32-95  6*1  24'70  7*1  16-45  8*1  8'20 
4-2  40.35  5-2  32*10  6*2  23'85  7*2  15*60  82  7-35 
4-3  39-55  5-3  31*30  6*3  23  05  7-3  14*80  8*3  6-55 
4-4  3870  5-4  30*45  6-4  22'20  7*4  13  95  8*4  570 
4-5  37*90  5-5  29"65  6*5  21*40  7*5  13*15  8*5  4-90 
4-6  37  05  5-6  28-80  6*6"  20*55  7*6  12*30  8*6  4'05 
4-7  36-25  5-7  28-00  6-7  19*75  7*7  11*50  8*7  3*25 
4-8  35-40  5-8  27*15  6*8  18*90  7*8  10-65  8-8  2*40 
4-9  34-60  5  9  26*35  6*9  18*10  7*9  9*85 
THE  FOKMS  OF  ALBUMEN  IN  THE  URINE,  AND 
THEIR  TESTS.1 
By  Dr.  T.  Grainger  Stewart,  Physician  in  Ordinary  to  the  Queen  for  Scotland. 
The  forms  of  albumen  met  with  in  the  urine  are  : — 
I.  Serum  Albumen,  a  substance  which,  according  to  Hammarsten, 
constitutes  4*516  per  cent,  of  the  blood  serum.  It  is  almost  constantly 
present  in  urine  which  contains  any  variety  of  albumen.  Although 
a  less  diffusible  body  than  serum  globulin,  it  is  capable  of  passing 
through  membrane. 
II.  Serum  Globulin  or  Paraglobulin,  the  globulin  of  the  blood 
serum,  of  which  it  constitutes  3*103  per  cent.  It  is  met  with  in 
almost  all  albuminous  urines,  its  proportion  to  the  serum  albumen 
varying  in  different  instances. 
1  From  a  lecture  delivered  at  the  University  of  Edinburgh  ;  reprinted  from 
Quart.  Compend.  of  Medical  Science. 
