

CONJ i-i. 





ted by M. Thuret, that in Confi rva 

 special oi 



, that the freely in fluid. I 



luud have I" en noticed in the « Iscilli nd in thi 



linarj as i" approach uearlj 

 rl M. Di 



! ■ 



■ 



I IV. 



SnowplantB, which have ! 

 Protocol cus, are nothing more 



tubes, oi which one tra r, hy 



a | eculiar mcclianism, I which it 



contained, in 



distinct and separated by a partition, whi 

 1 after tlie in." In 



coming t two tubes project 



nipple from each of two opposite cells, which 

 by i! 



the nipples are absorbed, a 



• i .'. een the cells, tin- colouring matter of one 

 pours i 1 1 1 • • the other, till "in- oi the cells i> 

 wholly emptii '1. 



Mi \. :i states, that the red an I 

 described 



th'' animalculi - called Encb 

 Pulvisculus. Bui tlii— does nut affect the genus I' :us, which contain 



cting whose vegetable nature no doubt i- • ntertained. 

 Hydrodictyon utriculatum has the appears en net According t" M. 



Areschoug, the cells of this plant, win n nearly ripe, contain a number of active spheri- 

 cal granules, which in the process of reproduction become elliptical, and are atta 

 by their extremities, when an articulation i- soon produced, so a- to form pentagons 

 ci- hexagons. Bach granule becomes a cell • •!' the new Hydrodi 

 u&ric. 'io.) 



la by this passage that t !".>. Atflnttbe; ly, but soon those which ret 



swimming In a much larger space, have mod aping, and it is only after Innumi 



knocklnga (titubal Us of their prison, that thej 



first Instant of the motion one < i ranulea or sporules are furnished with a litt 



kiml of anterior process, always distinguishable from the bodj of the seed b ■ 



the vibrations of this beak that thi (conceive, 



cover any i B I inture to deny ti for with a vi 



a compound mlcroscop rroundedwith a hyaline border, as wi 



dilated Infusoria on applyii (Insufficient power. The spore 



present tin- tx al> In front of their body, as U it the way ; but wl 



iin. \i'. r .\ bending it bach along the > i • 1 -. ■ of their body, they resume t' 



nml after the motion • trace ol t!.; 



the joint coi cipally in quick dartlngs along the walls of the . 



■ them bj innun 

 motion Ol the Sporules 1 1 : , t the 111:11111111. I I from their prison lli' . 



for on.' ..1 t«.. houn, and ■ 



■ ■- they remain In the same | 

 circles. Finally, they collect In den 



body :i*. th.- bottom or on the surface ofthewai r. wher 1 

 menta like those of the mother plant. The spherical 

 attach. 1 t.> the Btrange bodj by the 



expansion, without emitting any root. 1 en internal matter 



which appears at I 

 It i- thus, 1 J BUI 



of the mammilla in each joint is una rtaln, at least 1 



• the sporuli s does not take place at the same time in the .1. 



: the articulations already escaped, while lull 

 1 uppermost joints . mptj thi 



of a filament entirely transparent, whilst th. 

 the formation and nation of thi otinue during tin 



ment suffices for the formation of an infinite qua 

 contains perhaps many hundred 1 

 with them : bo that we might readilj take for a Pi 

 spores of a Conferva. 1 suspect that from such 1 

 proposed by many moden ..-." 



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