[19] BIOLOGY OF THE RHINE SALMON. 445, 
The loss of weight of liver and intestines should also be taken into 
account : 
Liver. | Intestines. 
; Grams. | Grams. 
Weichtot theseorgans, August T oc: scsss2- .cisscce a sisctcccnvesestccescce sce 119 125. 5 
This makes, calculated in per cent. of the final weight, November 11.......... 1. 46% 1. 53%. 
From this subtract the average weight of the organ of mature female fish in | 
NOME MD Clemens sy meine aeteanis meinen claieinicimnte snes aera ie cislelnic saaeyteiecm tienes 1.06 0. 70 
Mossyou weightior, the body, in per Cent... 2.2. secce acceso esos cae 0. 40% 0. 83% 
In building up the ovarium the following muscle substance has dis- 
appeared entirely : 
e NCIO Mt Of LNG OVATINMY os. oo ce coe cia 01s ote oe ons Seu see sec 1, 880 
(2.) Decrease of weight apart from liver and intestines (722—92). 630 
MP Opaimeeee teas tated eee e.. See Oa ie Be ieee 2710 
With 16 per cent. albuminous matter ....-- Pore Re ea ese 452. 6. 
(3.) The remainder of the muscle (6,340—2,710) = 3,630 must, from 
16.7 per cent. albumen, go down to 13.2 per cent. Loss 3.5 per 
COMGIOL os OOo aces Mig (oie pe eee eee gay SRSA bronays sd Mane ae BLA & 
SUE ISLOSS cOn peROUIM EM 520 utcne cies, os chen, n/c cient yee One Rhone ate, 579. 7 
This quantity of albumen would very nearly correspond to the nour- 
ishing matter contained in 6 pounds (3,000 grams) of beef of medium 
quality. 
Of its total quantity of nourishing albumen (6,340 x 16.7) = 1,058.8 
grams, the muscle has lost 54.74 per cent.. or more than one-half; a 
result which will be interesting in many respects. 
Of 100 parts muscle (“salmon-flesh,” as understood by cooks) 43 per 
cent. have entirely disappeared ; the remaining portion has sustained a 
loss of albumen, and has therefore lost 21 per cent. 
Still greater is the relative loss of fat, whilst the loss of phosphoric 
acid is about equal to the loss of albumen. 
From this material there had to be formed the ovarium, calculated at 
1,880 grams, less that part of the ovarium already in existence (the con- 
tents of which, in firm substances, is almost equal to the mature ovari- 
um) 280 grams, leaving 1,608 grams to be added to the ovarium. 
Indeed, the demands made by the ovarium are very great! The clear, 
yellowish fluid, which forms by far its greater portion, is so Concentrated 
that it dries very soon, and forms a sort of amber-like substance, which 
possesses spch a strong refraction that the firm portions (little pellets 
and pieces floating about in it) look like holes (vacuolen). 
Chemically considered, this fluid is nothing but “liquid caviar” —an 
intensely concentrated solution of a substance entirely analogous to 
the little yolk-disks of the sturgeon and other fish; it produces the re- 
actions of albuminous bodies; by boiling it in alcohol about 20 per cent. 
