Action <>r lOxtiacts of ( )vary on IMain Mu.sclc 



X\ 



Action on Uterus of Rabbit. 



The strenijth of the extract employed was from ."> per cent, to 

 6 per cent. There were alttji^ether five experiments. In four cases an 



Fig. 7. — EtFect of liquor folliculi of cow on rat's uterus suspeiiderl in Locke's solution. 



Notice the increase of tone with cessation of rhytiunic movements. 



The signal maik.s should be shifted a little to the left. 



Fio. 8. — Etfect of liquor folliculi of cow (2 per cent.) on rabbit's intestine, allowing production of 

 increase of tone. At the second mark the li([Uor folliculi was rej)laced by simple Locke. 



increase of tone as well as an increase in the height of the rhythmic 

 contractions was observed. In the fifth case, on the other hand, inhibition 

 was produced. 



Action on the Intestine. 



Four experiments were made on portions of the intestine : three from the 

 rabbit, one from a kitten. All the tracings show distinct increase of tone 

 (fig. 8). The strength of extract employed was from TS per cent, to 5 per cent. 

 VOL. XL, NO. 1. — 1917. 3 



