70 Cramer and M'Call 



Fed with A t>Tm. dried thyroid in addition to bread and milk on 18/11 at 

 6 p.m. and twice daily thereafter from 19/11 to 22/11, and on 28/11 at 

 8.45 a.m. Observations made on — 



19/11. Referred to in figs, as Exp. Th.l wt. of rat 158 grm., temp, of room 17°. 

 20/11. „ „ Th.2 „ 158 grm., „ 17". 



21/11. „ „ Th.8 „ 158 grm., „ 17^ 



23/11.1 ^, ,, Th.5 „ 150 grm., „ 18°. 



Thyroid feeding discontinued after 28/11, 8.45 a.m. Usual method of 

 feeding continued, and observations made on — 



24/11. Referred to in figs, as Exp. Rl, wt. of rat 150 grm., temp, of room 16'5°. 

 27/11. „ „ R4, „ 150 grm., „ 17°. 



30/11. „ „ R8, „ 160 grm., „ 18°. 



Rat 4. — From 4/10 to 5/11 fed as described above with bread and 

 milk. No observations made. Same method of feeding continued, and 

 observations made on — 



6/11. Referred to in figs, as Exp. Nl, wt. of rat 120 grm., temp, of room 20'. 

 7/11. „ „ N2, „ 120 grm., „ 18°. 



9/11. „ „ N3, „ 125 grm., „ 18°. 



Fed with | grm. of dried sheep's thyroid on 9/11 at 5 p.m., and twice 



daily thereafter from 10/11 to 12/11, in addition to bread and milk. 



Observations made on — 



10/11. Referred to in figs, as Exp. Th.l, wt. of rat 125 grm., temp, of room 18°. 



11/11. „ „ Th.2, „ 120 grm., „ 18°. 



12/11. „ „ Th.8, „ 118 grm., „ 17° 



1 On 23/11 observations were begun an hour later than usual, and include therefore 

 only the fourth till eighth hour after the meal. This is indicated in the figures. 



REFERENCES. 



(1) Cramer and Krause, Proc. Roy. Soc, B, 1913, Ixxxvi. 550. 



(2) Unpublished observations, 



(3) ScHAFER, Endocrine Organs, Longmans, Green & Co., London, 1916, 5. 



(4) Detailed references to the literature on these points are given in the paper 

 by Cramer and Krause quoted above. 



(5) E. A. ScHAFER, Croonian Lecture, Roy. Soc. Proc, B, 1909, Ixxxi. 442. 



(6) Pembrey and Spriggs, Journ. Physiol., 1904, xxxi. 320. 



(7) Cramer and Krause, op. cit. 



