MISCELLANEA. 187 



described in the first vol. of this Society's "Transactions" by the 

 late Mr. Hancock. I note this as showing persistence of habitat. 



Uvelh. — Mr. John Eidsdale took a gathering of a yellowish 

 flocculent deposit from a pool near the east wall of St. Nicholas' 

 Cemetery on the Nuns Moor. On examination this proved to be 

 Uvella, not an uncommon organism, but remarkable in being a 

 nearly pure gathering, covering the entire bottom of the pool. 



Euglena. — The surface of a field pond, a little to the west of 

 Eyton, was covered in July, 1878, with a reddish brown pellicle, 

 only broken at the margin where the cattle had stooped to drink, 

 and certainly a nursery for the development of parasites, inimical 

 to the existence of the animals which were compelled to have 

 recourse to it. This pellicle was composed of Euglena sanguinea, 

 an organism regarded by Griffith and Henfrew as the perfect 

 E. viridis. 



A gathering was preserved over the winter and periodically 

 examined. In assuming the still form it sunk to the bottom of 

 the containing vessel, each individual gradually becoming mottled 

 with green and ultimately losing all trace of red ; it then propa- 

 gated itself by segmentation and division, and ultimately reap- 

 peared as the ordinary E. viridis. 



Mr. George Harkus called my attention to a curious variety, 

 if it be a variety, which he found on the Town Moor, in which 

 the flagellum was tipped with a distinct bulbous termination. 

 This is figured in "W. Saville Kent's " Manual of the Infusoria," 

 plate 20, figure 29. 



Nitella, probably fiexilis, was first observed amongst some 

 Anacharis [Eloda Canadense) in 1874, growing in the ditch skirt- 

 ing the northern edge of the Town Moor, a little way west of 

 the Grand Stand near to the field path leading from the Moor to 

 Kenton. This ditch was j)rolafic in Algm; the grouping toge- 

 ther of many uncommon forms seems remarkable, as, if not ac- 

 tually rare, their detection would have covered a wide area had 

 they been specially sought for. 



Here Nitella appeared at intervals in bright green clumps, ap- 

 parently well suited with the clayey bottom of the runner. Mr. 

 John Eidsdale afterwards found a luxuriant growth of this plant 



