70 JOURNAL OF THE [july 



as thoroughly as I could, cleaned out the quarantine hospital. 

 I also had a still smaller aquarium into which I removed from 

 the hospital such as I thought might be convalescing. 



It must be that there are constitutional differences in fishes, 

 even of the same species. The one I saved was an adult black- 

 banded sunfish. Supposing it to be cured, I restored it to the 

 large aquarium, and in three days I saw symptoms of a second 

 attack of the malady. The fishes thus suffering would rub 

 themselves by swimming rapidly against a stone. But this could 

 only touch the sides of the animal; thus the head and back would 

 have an unbroken white coating not unlike cotton. I hastily 

 returned the " Bandie " to the hospital, where he soon improved, 

 and was then transferred to the little aquarium, which I called 

 the sanitarium, and was allowed to stay there; thus a complete 

 cure was effected. 



So far as my time would permit I submitted specimens of the 

 fungus to the microscope, and was rewarded with some good 

 displays of the methods of growth, and although not altogether 

 original, it will, I hope, not be amiss if in a brief way the life 

 progress of the plant be given. 



Reference has been made to the Aphtha, or the parasitic fun- 

 gus of thrush. This is known as a sprouting fungus. The 

 spores arranged in irregular rows, each sprouts at one end, not 

 unlike grains of wheat. Suppose a row of such grains, each one 

 just where it grew, bursting and sprouting, first on one side of 

 the row, then on the other, that is, alternating though irregularly, 

 and we should have a fair picture of the process. But our para- 

 sitic Saproh\£;nia proceeds very differently. The motile spores, or 

 zoospores, we will suppose, have swarmed, and escaped, or been 

 emitted from their sporangium, or generative sac. They are 

 now on their travels in the water, for each one has its propelling 

 cilia. Having found a staying place and undergone a change, 

 to be described, either immediately or after due waiting, germi- 

 nation begins. A slight pimple appears on the surface of the 

 spore. It is not a bud or a sprout protending through a debis- 

 cence, as in a seed — but a pushing out of the skin itself, until it 

 is prolonged into a little tube, like the finger of a glove. This 

 tube grows, becoming a mycelium or hypha, really a hollow or 

 tubular thread. Of these thread-tubes or filaments, is the plant 



