on a Tijh-Vond in Norway, %g^ 



drops of water ; but they coUefted themfelves fometimes 

 together (5 and 6), and tumbled feveral times round in a 

 circle (4) . I obferved alfo, that, when they began to lofe 

 life and animation, their longifli figure was changed, and 

 they afTumed that of a triangle or funnel, with a tail or 

 tube (5). Miillcr obferved the fame thing in the Ccrcarla 

 'viridts *, and at laft they acquired the form of a globule, 

 which is reprefcnted alfo in Miiller f. I have no doubt 

 that thefe globules were the fame round animals, though 

 dead, of which I have already fpoken ; efpecially as Miiller 

 fays of his Cercar'i^ virides, that they can afTume a globular 

 form. Of the bright points in the middle he fays nothing; 

 and it appears lingular to me that he did not obfer\e th-em, 

 as he viewed them much more magnified than I did. He 

 fays as little of the red colour which they can alfume and 

 communicate to the furface of the water, and nothino- at all 

 of the bright bodies or fmall fpecula inclofed in round rims, 

 which were perfeftly like the fmall round globules with a 

 bright point in the middle, only that they were fome hun- 

 dred times larger. But I dare not affirm that they were of 

 the fame kind, and only different in fize. It is very pro- 

 bable that they confifted of the flime of the dead Cercariep, 

 which formed bubbles by means of the air inclofed ia 

 them ; for, that they were round like bubbles, appears from 

 this circumflance, that they eluded every impreflion, and 

 fometimes divided themfelves into two or more fmaller 

 bubbles, and even by a ftronger impreflion extended to a 

 longifli, oval, and irregular form like thofe marked (6), which 

 fliews that they confifted of a tough flimy fubftance. Among 

 fome fmall animals of another kind, feen fometimes in the 

 drops of water, none were more confpicuous than the jBra- 

 chionus urccolar'is \, by its tranfparcncy, and the three or 

 four round balls, or ovaria, which it has at the hind part of 



' Aftlmaknla itiftiferia, Tab. 19. fig. 9, 



t Fig. 7 and 13, 



J MuUcr's Aiiimalcula infuforia, No, 377, Tab* 50. fig. 15- ir. 



its 



