Phosphorus. I-^Sl 



C. — Experiments to determine the Distribution and Evolu- 

 tionary Significance of Phosphorus in the Muscular 

 tissue of Animals. 



Determinations of the P^Oj percentage, in the muscular 

 tissue of various animals, were made. In the case of the Mol- 

 lusca the adductor nmscles from a number of oysters were 

 used for the experiments. In the case of the Arthropoda the 

 body muscles w^ere used. For the Vertebrates the muscles 

 which serve to move the pelvic fin of fishes, and those which 

 move the lower limbs of frogs, lizards, birds, dogs, etc., served 

 as examples for Pisces, Amphibia, Reptilia, Aves, and Mam- 

 malia respectively. 



The table shows the results: — 



P.^O. in Muscle — Invertebrates and Vertebrates. 



Name 



Group 



Oyster, Australian (aver- 

 age of 33) - 



Fresh-water " Yabbie " or 

 Astacopsis - - - 



Mullet-male - 



,37 



.51 





2.fi9 29.5 1.0 8.9 Mollusca 



2 4 37.93 l.()2 6.3 Arthropoda J ►^ 



2.22 3S.1 1.3 5.8 Pisces 



2.28 42.8 ■ 1.2 5.3 



Bream-female (no roe) 

 Frog (average of adult fe- 

 male and young male) .42 1.93 35.4 1.2 5.4 Amphibia 



Lizard . - . 



Parrot - 



Thrush - - - 



Mouse 



Dog - - - 



Cow - . - 



> 



