90 



THE AMERICAN MONTHLY 



[May, 



ACTION OF VARIOUS REAGENTS ON VIBRATILE CILIA. 



REAGENT 

 EMPLOVED. 



STATE OF 

 REAGENT 



EFFECT ON MOVEMEN T. 



ANTIDOTE. 



EMPLOYED 

 BY 



Wafer. 



Blood. 



Iodized Se)-- 

 lun.* 



Bile. 



Albumen and 

 Milk. 



Sodium 

 Chloride. 



Fresh. 



0.5% 



M. 

 ^"/o 



Over 6''^, 



Swelling and rapid destruc- 

 tion of such cilia as are nor- 

 mally bathed in salt water : 

 not so marked if added grad- 

 uall)-. Destroys movement 

 of spermatozoids. 



Stimulates at lirst, height- 

 ens electromotor power and 

 finally destroys movement. 



Destroys in invertebrate 

 cilia. Very favorable for 

 the study of, in mammals, 

 birds and reptiles. 



Most favorable for study of 

 movement in general. 



Arrests. 



Conservates. 



Very favorable for observa- 

 tion. 



Maintain for a long time. 



Sodium 

 Phosphate 



Alkalies (in 

 general). 



Dil. 



Destroys. 



Especially favorable. Stim- 

 ulates at first, then destroys. 



Are favorable to movement 

 in spermatozoids. 



Sodium chloride, 

 salt, sugar, alum, 

 (concentrated sol.). 



Crystalloids, 

 evaporation, sugar, 

 glycerine, CO^ 

 acetic acid, ether. 



Ether (s o m e - 

 times), caustic so- 

 dium or potassium. 



None. 



Revived when it 

 does cease, by cau- 

 stic soda and pot- 

 ash. 



(Sometimes) dilu- 

 tion or CO2 



Heat. 



Engelmann. 

 KoUiker, 

 (ref. 83). 



Engelmann. 

 (ref. 13,17)- 



Sharpey, 

 (ref. 44). 



Kolliker, 

 (ref. 83). 



Roth, (ref. 



IS)- 



Engelmann. 

 (ref. 17). 



Leutmeyer, 

 (ref. 59). 



Kolliker, 



(ref. 80), 



" S3). 



Virchow, 

 (ref. 55). 

 Kolliker,, 

 (ref. 83). 



Iodized Serum is the Amniotic fluid of ruminants, to which has been addc<l a little cone, tinct. iodine. 



