A VERY remarkable red-water phenomenon is at present observable in a small pond in Broad Oak Park, Worsley, near Manchester, just in front of the seventh tee on the golf course. The surface of the ...

A PHENOMENON of dichromatism in Euglena precisely similar to that described by Prof. Arthur Dendy in NATURE of August 7 was recorded by me in The Essex Naturalist in 1890 as occurring at Donyland ...