AMMAL MK KU-|'\ 



aqueous solution of fuehsin. met h> 1- violet, or Bismarck- brown, 

 or with aurantia. nigrosin, un.l other anili,,,. dy.s. Th- foU 

 method will, however, be found I,,.M inftmtto:- I 

 prepared saturated solution of fuchsia or methy 1- violet in al. 

 alcohol, and put a drop with a pipette on the centre of the prepara- 

 tion; do not disturb the drop-form for a few moment ; th, , before 

 the alcohol has evaporated, wash off the excess . , s ,ll } 



found that where the drop rested the organism* will he v.-ry d.-.-plv 

 stained, while in the surrounding area the colour will Vary ii, 

 intensity. By the effect of the different degrees ot 



FIG. 242.M..NADS IN RAT'S BLOOU STAINKD WITH Mmm. YIOI.KI. 



MEMBRANE UNDER DIKKKHKM A.-rK<T>, BLOOD-CORPUSCLES, HOME CBK- 

 XATEI> AND STAINED Discs (x 1200). 



may be learnt (Fig. 242). In one organism the body and entire 

 membrane will be equally stained ; in another the margin of the 

 membrane only. In some the posterior still li lament is stained, 

 and at its base a darkly stained speck is \ery striking; and in 

 other cases, again, the posterior filament i> only taint ly tin;:*- 

 an unstained spot occurs near its base. 



HJSMATOZOA OF I IMI. 



In the year 1883 Mitrophanow pulli>li-d a paper in win 

 gave an account of organisms in the bl<*>d "t tin- mnd-tish and 

 carp. 



In the blood of the mud-fish (''/,;//* /,,,,///*) the organisms at 

 the first glance looked like minute nematodes, but the appearance* 

 and changes which took place on further exa: showed 



nothing in common with worms (Fig. 1'U). As a 1 p' : 

 solution had been add.-d to th.- blood und-r rxaii.i- occurred 



