*jo°J?nL,*j^nT?m'] Jotiings hj a Student of Eeterogemj. 29 



moving at intervals. When the water evaporates the Yibrions appear 

 like beads. 



Sept. 19fh. — Another observation of Yibrions from same source, 

 counted 40 links in one chain. Yibrions bead-like when dry. 



Oct. 2oth. — Observed the mucilaginous exudation from Palmella 

 cruenta (Oct. 13th). Found no Yibrions ; only still granular matter. 



Au'j. 2Srd. — Put up some Pulv. Tragoe co., with warm water in 

 the following states : — 



a oz. A in bottle a bubble of air. In darkened room. 

 y8 oz. ^ in 1 oz. bottle. HuK air. „ „ 



7 1 oz. in 2 oz. bottle. Xo cork. In light. 



Aug. 24:th. — No change in y. 



„ 27th. — A scum on surface of y. Small bodies. Movement 

 uncertain. 



Aug. 29th. — Filaments of Mucedo on surface of /3. 



„ 31st. — Xo moving life in -/. 

 Sejjt. 18th. — Xo moving life in 7 or 3. 



Of Paramcecium, see '• Jottings," Exp.. March 5, h. April 17th, 20th ; 

 d. March 10th, 17th, 20th, 26th. Exp., May 25th. E June 1st, 3rd, 

 9th; May 30th. Observations, April loth; May 6th, 11th, 20th, 

 23rd ; April 17th, 21st. 



May 9th, 1869. — Observed several globular and oval Paramcecia 

 with projecting globular cells, which, when knocked about by other 

 Paramcecia, were liberated ; no spontaneous movement. 



Saw the vacuole in a Paramcecium change its situation, and then 

 slowlv change to a form as if about to separate bilaterally. 



Watched a Paramojcium divide into halves. 



Saw a Paramcecium with bifurcated tails (?). 



Watched the change iu position of the vacuole, and afterwards a 

 side view, by which I could decide that the change of vacuole is due 

 decidedlv to- contraction of cell-wall. See April 15th, "Jottings," 

 Xo. I. 



Juli/ 2oth. — Saw two globular Paramcecia from the surface of a 

 liquid containing mosses and conifervee conjugated for about a minute, 

 and then separate. 



Saw the contracted cell-wall again from a side view. 



Watched Paramcecium globular, oval, and sc[uamous so associated 

 with Convallaria of all shapes and forms, that they seem to be the 

 same in different stages of development. 



August 9th. — Put some grass seeds in an open timibler of water. 



Aug. 10th, 2 P.M. — Evident Monads, Yibrions, and Mucedo. 



Aug. 12th. — Surface full of Monads and Yibrions. 



Aug. 27th. — Paramcecia of all sizes ; Convallaria innumerable. 



September I'Bth. — Put up two patches of green slime from a pave- 

 ment—one near a running tap, where the stone was rough, marked T ; 

 the other from near a sink where the stone was smooth, marked S ; 

 each in two drachms of water. T contains Chlorococcus patches — 

 round, oval ; links of two or three, and Oscillatoria tubes ; no moving 



