92 



REPORTS ON THE STATE OP SCIENCE. — 1915. 



first portions of the shower are rejected. Failing this, good tank-water will 

 do, but hard mineral water, or water that is at all discoloured, should on no 

 account be employed. On request a large bottle for storing a supply of pure 



Ql»is wool plug 



K 



'J ■ 



Vv* T» Attachment to wooden 'M 



poos arnrwn into ground 



PIAM 

 Showing arrsngement of pegs 



7/ 





Ordinary nteih^ o/ 

 setting up - Iron spikes 

 driven into ^rouna 



Sca/e of /nc/ies 



IS 4 S 6 1 I t 10 



n 



rain-water will be forwarded. Washing out with water should be repeated 

 each day when there is a probability of rain. When draining the glass-ware 

 care should be taken not to allow any part of the funnel or the neck of the 

 bottle to come into contact with the soil. 



