172 THE MICROSCOPE. 



immediate kin are found. I do not know what bait must be prepared 

 to catch this remarkable shy form: possibly our President may give 

 our Secretary a few hints on the subject. 



"My last species is the M. germanus, a true genuine micro- 

 scopist. Of this species we have some admirable examples, men 

 who patiently and perseveringly take up some section of the wide 

 world of science, and work on and on till they have worked out 

 some beautiful system, or worked up the whole life-history of a race. 

 It is those men who add to the sum of the world's knowledge, and 

 so add to the sum of its happiness. The discovery of truth in any 

 one line cannot but be beneficial, for every discovery of truth helps 

 in the discovery of other truth, and sometimes in lines remote 

 enough from the first. The story of the world of science is full of 

 instances of this. And every man who lays a stone may know that 

 he is doing something for the completion of that grand temple of 

 truth that shall fill the world with its radiance. 



"Gentlemen, we exist that we may bring together these various 

 classes, all interested, though in different ways, with microscopy. 

 Men of kindred pursuits naturally desire to meet each other, or 

 should do so, that there may be mutual help and the interchange of 

 ideas, and that by such help knowledge may 'grow from more to 

 more.' 



"I think I have shown that we have a right to exist, that by our 

 existence we may not only amuse and profit each other, but do 

 good in the community in which we are placed, and perchance do 

 something to help in the advance of knowledge in the mighty world 

 of science. 



"May I trust that next year will be far more prosperous than any 

 preceding ones have been?" 



The Microphyte of Yellow Fever. — Dr. Carmona del Valle 

 says, in a recent number of the British Medical Journal, that he has 

 detected the microphyte characteristic of yellow fever, and proposes 

 to name it peronospora lutea. The germs of the cryptogam are 

 found in the patient's excretions, and in fluids of the organism, espe- 

 cially the blood and the serous discharge resulting from blisters. 

 The doctor has also discovered in the matter vomited, besides 

 spores, a large quantity of mycelia of various colors, black predom- 



