30 Jottings hy a Student of Eeterogemj. [^"^;'?;,L. jirHI'm ' 



life. S contains Chlorococciis patches, round, and separate soridial 

 tubules ; no moving life. 



Sept. 17th. — T contains yellow Diatoms and green CUorococcus. 

 S contains single granulated monads, double and multiple, all 

 moving. Paramoecium and Convallaria. Watcbed a round, trans- 

 parent cell containing about ten green globules, throws out a pro- 

 jecting ciliary apparatus, and becomes a Convallarium. Watched a 

 globular Paramfecium gradually separate into two, which finally were 

 attached by a tiihidar link before separating ; when they separated, one 

 retained the globular shape, the other became oval ; each then floated 

 away as an indei^endent j)lant. 



Examined the filament, or stalk, of a Convallarium which had a 

 motion from side to side, independent of the body. 



Examined the main contents of the drop of liquid S, atnd found 

 monads of every size, free and in clusters, all moving over the others, 

 some in masses of about ten oval cells ; cells rotating on their own 

 axis. Oval cells, large Paramoecium of every shape and stage, conju- 

 gating, separating, ciliated, and non-ciliated ; in fact, every variety 

 intermixed with Convallaria. 



Sept. 18th. — Paramoecium is only a stage of growth of Convallarium. 



Saw a distinct Convallarium, with filament attached, swim off, 

 exactly as a Paramoecium. 



Saw Paramoecium change to Convallarium, protrude a tail, filament 

 or stalk, and throw out cilia in front. 



Watched a Paramoecium for five or six minutes, saw the whole 

 change of fissation from one oval individual to two globular. 



Watched several Paramoecia with Convallaria arrangement of 

 cilia under the influence of opium, changing the situation of the 

 vacuole, and jjrotruding a globular film of transparent membrane, 

 like a bubble of air half its own size, above the cilia. 



Sept. 19th. — There is no longer any doubt that Paramoecium and 

 Convallarium are stages of the same thing. I have seen the same object 

 assume four distinct forms — three distinct Convallaria and one 

 equally distinct Paramoecium. 



These observations were all made in the liquid marked S. 



Of the cells observed in mosses. 



Feb. 7th, 1869. — A number of round green cells, each having a 

 prolongation consisting of a vacuole, generally containing one or 

 more green masses. The cells presented a great variety of very 

 beautiful shapes. 



Ju7ie 18th. — Found some branching moss-cells in a patch of 

 Palmella cruenta. 



June 22nd. — Every vai'iety of Moss-cells, from round and oval 

 to elongated filaments, found under a board at a boat landing-stage 

 on the river Lune. 



Of Diatoms. 



June 10th — Examined some specimens of Marine Algje, in which 

 the vacuole varied in size, from filaments containing globular masses 



