EFFECTS OF THIRST, ETC., ON EMYS TERRAPIN. 



47 



stituents in 1000 parts of blood, alone, were considered ; for the blood-corpuscles 

 and all the organic and inorganic constituents in this case would appear to have 

 increased rather than diminished during starvation. A correct view of the effects 

 of starvation can only be obtained by ascertaining the absolute amounts of blood 

 and its constituents existing in these reptiles during different lengths of starvation. 



By comparing these results with the quantity and constitution of blood in 

 animals in a normal condition, not deprived of food or drink, we can calculate, 

 approximately, the amount of blood and its various constituents that have been 

 consumed during starvation, to supply the wastes of the tissues and keep up the 

 animal temperature. 



The following tables give a condensed view of the effects of starvation. They 

 •must not be considered absolutely correct, but only as an approximation to the 

 truth. 



It would be impossible to determine these changes with absolute accuracy, 

 because differences in the amount and constitution of the blood always exist in 

 different individuals. 



I. — Tables showing the Changes in the Relative Amounts of the Organic and Inorganic Constituents 

 of the Blood of Salt-iuater Terrapins (Emys terrapin), during dijferent periods of Starvation and 

 Thirst. The mimbers represent the amount existing in 1000 parts of blood. The changes^ there- 

 fore, are relative, and not absolute. 



WATER AND SOLID MATTERS OF BLOOD AND SERUM. 





Period of 

 starvation and 

 tliirst. 



Water in 1000 

 parts of blood. 



Water in 1000 

 parts of se- 

 rum. 



Solid constitu- 

 ents in 1000 

 parts of blood. 



Solid constitu- 

 ents in 1000 

 parts of se- 

 rum. 



Solid constitu- 

 ents in serum 

 of 1000 parts 

 of blood. 



1st female terrapin 

 2d 



3d " 



12 hours 

 40 days 

 57 " 



845.28 

 800.59 

 744.78 



956.17 

 920.50 

 888.04 



154.72 

 199.41 

 255.22 



43.83 

 79.50 

 111.96 



38.75 

 69.15 

 92.82 



CONSTITUENTS OF 1000 PARTS OF BLOOD. 





Period of 

 starvation and 

 thirst. 



Water. 



Blood-cor- 

 puscles (dried 

 organic con- 

 stituents). 



Albumen, 

 fatty and ex- 

 tractive mat- 

 ters. 



Fibrin. 



Fixed saline 

 constituents. 



1st female terrapin 

 2d " 

 3d " 



12 hours 

 40 days 

 57 " 



845.28 

 800.59 

 744.48 



103.82 

 118.56 

 156.98 



36.01 

 64.85 

 90.87 



4.15 

 5.26 

 1.85 



10.74 

 10.74 

 5.52 



MOIST BLOOD-CORPUSCLES AND LIQUOR SANGUINIS. 





Period of 

 starvation 

 and thirst. 



MOIST BLOOD-CORPUSCLES. 



LIQt'OR SANGUINIS. 



Moist blood- 

 corpuscles in 

 1000 parts 

 of blood. 



Water of 

 moist blood- 

 corpuscles. 



Solid con- 

 stituents of 

 moist blood- 

 corpuscles. 



Liquor 

 sanfCTiinis in 

 1000 parts of 



blood. 



Water of 

 liquor san- 

 guinis. 



Solid con- 

 stituents of 

 liquor san- 

 guinis. 



1st female terrapin 

 2d 



3d " 



12 hours 

 40 days 

 57 " 



447.28 

 500.00 

 642.20 



335.46 

 375.00 

 481.65 



111.82 



125.00 

 160.55 



552.72 

 500.00 

 357.80 



509.82 

 425.59 

 263.13 



42.90 

 74.41 

 94.67 



