112 ^riiirt //-First Ainuud Mcdinij 



Prof. ]\r;irs.h : :\Ir. C'lark, 1 think, will k'll you the exact dis- 

 taiK-o. It is a few rods, I think. 



Dr. Birge : You speak of these organisms as heing in the 

 springs. They ought not to be in the spring water, as it comes 

 out of the ground. 



^Ir. ('lark : The springs that Prof. Marsh has spoken of 

 flow into the ponds. I shoukl say, about 90 or 95 feet from the 

 source; but from the upper or main spring it is probably 300 to 

 350 feet or a little further to tlie ])onds. The water runs in a 

 sort of an open, paved ditch and through one series of ponds. In 

 another series it comes down through a pipe into a little pond 

 and then passes underground, these two being all that are sup- 

 plied from the main sjjring. j\Ir. ^larsh's cultures are being 

 made from waters of both springs. 



^Ir. j\larsh : When Dr. Birge sjjeaks of its being strange that 

 bacteiia sliould come from the water as the water comes from 

 the ground, it does seem rather peculiar; but that must be the 

 case, because the fry in tlie liatchery in the troughs now have the 

 disease, or take it, ov have bad it; and one can hardly imagine 

 liow tliev could get it from the trough, and 1 do not think there 

 is any infection introduced on the way from the spring to the 

 trough. \Miene\er any trout are put in these spring waters they 

 take tbe disease, and tlie spring water itself, as it comes from the 

 ground, is much more to be suspected than the conduits through 

 which it is carried. 



Dr. Birge : I have no doul)t that the bacteria are in the 

 s])ring hole, but that tbey are in the water as it comes out of the 

 ground seems remai-kahle. 



^Ir. Marsh : I go as far as that, too. Tlie l>acteria are locai- 

 ize(| in tJie s})ring aiul tlie only source of infection appears to be 

 the gi'ound. We disinfected the spring so thoroughly with 

 chloride of lime ihat it looked as though we had killed every- 

 thing in il, hul the disinfeelion did not improve the remarkable 

 condit ion. 



Mr. Clark: But it ])retty near kilU'd some cattle several 

 mi U's away. 



Dr. Birge: The logical conclusion from that statement is 

 thai the baccillus is apparently touglier than a cow, (Laughter). 



Ml'. Marsh: It is stranu'e, for if the inlV'ction comes from 



