PL. VII. 



Fig. 1 a— c. Small flagellatum-like organisms (or germs?) of this kind were very common 

 jn most preparations taken from the accumulations of alga? in the ponds on the 

 ice. The three figures represent the same individual in different positions, c is 

 less magnified (760 diameters) than a and 6 (12S0 diameters). It is from water 

 taken on July 28, 1894, and kept for six days in a bottle in the laboratory. The 

 refractive small globules in the interior, were generally situated near the one end, 

 but in other, and greater individuals, they seemed to be more uniformly dispersed. 

 Most of the globules were yellow, whilst some were reddish brown (see the 

 greater, darker grain in Fig. 1, a). X is a protuberance on the side of the body. 

 In another individual a similar protuberance was situated in the opposite end of 

 the cilium. 



The individual here represented was at first more elongated and oval, but when 

 the movement began to cease it became more spheroidal as in the figures. The 

 length of the specimen without the cilium was 0'0139 mm. 



Fig. 1 a and b, Zeiss obj. F, oc. 4; cam. luc. Fig. 1, c, Zeiss obj. F, oc. 2 > 

 cam. luc. 



- 2. Similar organism from a half percent solution of Sodium Chloride made by Dr. 



Blessing with water from a pond on the ice. and kept in his cabine for several 

 days. Killed with Osmic Acid. Aug. 3, 189*. Length of body was 00087 mm. 

 (Zeiss F, 4, medium long tube, cam. luc). Other individuals were round, but had 

 the same appearance and similar yellow or brownish globules inside. 



- 3. Fresh state. Aug. 2. 1894. Bodies similar to this, of the same size and appea- 



rance, often observed in preparations of algas from the pond on the ice. They 

 were sometimes hexagonal like this, and sometimes approached the pentagon. 

 They had a yellowish colour. While being drawn, it changed in shape to some 

 extent, the hexagon became less regular, the two sides were curved inwards, and 

 more corners were formed (a). Magnified 1280 diameters. (Zeiss obj. F, oc. 4, 

 cam. luc). 



- 4, a—c. Living. Aug. 2, 1894. A great number of organisms of this kind were seen 



m all preparations taken from the same bottle as Fig 1, (taken July 28, 1894) 

 They are possibly individuals of the same kind as those illustrated Pis. V and 

 VI. The appearance was much the same, they were perfectly colourless, and 

 there was no distinct structure in the interior. ' The tail or stalk on all of them 

 was, however, fixed to the side of the body (Fig. 4, a and c) and not to the end, 

 opposite the cillium. Some had a more elongated body like PI. VI, Fig. 7. only 

 the anterior end, at the cilium, being more pointed (Fig. 4, a). Fig. 4, b is the 

 same individual as a, drawn a little later; it was not possible to decide whether 

 X had been developed as a protuberance or bud from the body, or had been 

 fixed to it from outside; it was suddenly seen at the side of the organism. 

 At the same time the vibrating movement ceased. It is not known whether 

 the cilium then disappeared, but it could not be seen any more. At this moment 

 the individual was unfortunately carried away by currents in the water, and the 

 observation terminated. 



