132 



Wliile collect in«- for the l)i(>l<>.ii'ieal (K'i);utiiient of tlie Julius ll(i|ikiiis uni- 

 versity, 1 put a small tiuaiititv of Eiujletia in a hottle ami ki-|>i it on my desk. In 

 a few days I examined it and fonnd anxeba in great numbers. 



To tiiose who are not aciiuainted with the Eaglena, perinil me to say that it is 

 a small jjlant which passes its motile stage on tiie surface of ponds in most parts- 

 of this country. After remaining in this condition a few days — the surface of tlie 

 pond being (|uite green witii tlieni — they pass into the resting stage and disappeur, 

 the surface of the pond becoming clear, liut in a few days more the pond will be 

 green with the motile. forms. This seems to be a remarkably favorable haliitat 

 for the anxeha. They are near tlie surface so that tlu'v can secure plenty of 

 oxygen, and the suri'oundings are such that the otlicr conditions oi lite are ex- 

 ceedingly good. 



When the above mati-rial was lirst examined they were multiplying very ra|i- 

 idly, but in a few weeks the contlitions chaiigi'd somewhat, so that there were 

 more large ones. 



This supply was secured in November, 1.S93, and was the source of supply for 

 the university the remainder of the year. When I left, late in May, 1894, there 

 were as many as ever and in good condition. They were so aluuidant that often 

 two or three dozen could l)e found on a single slide. 



On my return to Indiana, 1 found plenty of Enfjlfnu. and likewise a iiood sup- 

 ply of amu'ba. In September 1 furnislu'd my class with this nuiterial, and they 

 met with practically no difficulty in tlnding them, for they were so numerous. 



A little later I collecteil some of the Euyleita from a pond of strong nuinure 

 water in a barnyard, and the usual numbers were fonnd. 



A few days ago, on examining the sanu/ material, I fouml them more aluui- 

 dant than ever before 



By this method I iev\ sure that teachers can always obtain anneba without 

 any difficulty. 



The Variation.s of Polyi'okis Lie rnts. I?y L. M. I'xdekwood. 



[Ar.STRACT.j 



The above species is common to both Europe and Americ-a, and as usually 

 reported is a fungus that inhabits the dead portions of conifers, notably in our 

 northern regicuis the hemlock. It is also in northern regions a stipitate species, 

 having a lateral stem and is, moreover, annual. I find that in lower latitudes it 

 departs from all these supposed characteristics. (1) It grows on tlie wood and at 

 the roots of deciduous trees. (2) It is often sessile or has an iii-cgiilar si. i: . 



