////•: I'livsiOLoay oi- i'/..i\rs 2S3 



it under the w.iter till the shade is cjiiite full ; 

 place the soup-plate at the open end where the 

 shade is, and slowly raise the t^lass until it is 

 upright, and then it can be lifted out and placed 

 on a table in a window where the sun or brii^ht 

 li<jht can reach it. The bubbles of ox\-;^en will 

 soon bei^in to form alon^; all the edi^es of the 

 leaves and the jewelled effect of the boucjuet will 

 be \er)- curious and beautiful. It is hardl)' needful 

 to sa)- the stone is simpK' required to k'eep the 

 i^roup in an upright position. i^\- the follow inL( 

 da\- there will be a lar^e bubble of ox)-f^en col- 

 lected in the ui)per part of the shade, eliminated 

 from the leaves b\- the aid of chloroph\dl and 

 sunlit^ht. 



These chani^es resultiuL;" in assimilation are 

 alwa\'s in correlation with the process known as 

 tra)tspiratioit. The root is continuall\- taking; in 

 fluids chari^ed with inori^anic salts ; these are 

 b}' the water con\'e\"ed to the leaves b\- means 

 of the network of \eins, which we know b\- the 

 term fibro-vascular bundles. These, as we may 

 . see in skeleton leaves, traverse the entire substance 

 of the leaves where the salts are used up in the 



