THE I'HYsio/.ocy or rr.ixTs 293 



sioii, ti';uis|)iratioii, and respiration, collccticMi (jf 

 oxygen from water boiuiuet. Carbtjii-clioxide 

 from i^erininaliiii; beans. Observe — 



Blue mould on fruit. 



.Stra\\berr\' runner. 



Rooted cuttings. 



Stamens and pistil ot" an\' flowering;' plant. 



