466 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 





Total 

 Nitro- 

 pen 

 of all 

 kinds. 



12-47 



12-59 

 12-48 

 9-25 

 8-57 



6- 91 



7- 18 



7- 45 



8- 35 



9- 60 





Total 

 Inor- 



Nitro- 

 gen. 



10-42 



9-74 



8- 80 

 6-77 

 G-72 

 6-40 

 G-37 



6- 89 



7- 48 



9- 21 



o 



Total 

 Organic 

 Nitro- 

 gen. 



>0 HH 



IC U5 00 00>OrHrHiOCC>CS 

 03 OlCOC^rHOOOOO 



h 



Total 

 Unoxi- 

 dized 



(Kjel- 

 dahl). 



12-35 



11-5 

 11-10 

 6-60 

 5-15 



1- 75 



2- 25 



0- 85 



1- 03 

 0-60 



3 



•paumsuoo 

 0 = «V*xus. 

 •0 pnpsn 'uaS 

 -Xxq a\qvi\VAY 



t— t>«Df>lGO<MrHCOTt< 



to o c^i »o ^ o rc cc r-i 

 o e 6 <*'» ai ^ i 



rH rH <M 



1 1 1 1 + + + + + + 



hi 



Total 

 Oxi- 

 dized 

 Nitro- 

 gen. 



0- 12 



1- 036 



1- 38 



2- 65 



3- 42 



5- 16 



4- 926 



6- 6 



7- 32 

 90 



M 



= Use- 

 ful Oxy- 

 gen. 



to N 2 0. 



0-274 



0- 219 



1- 09 

 4-27 

 6-30 



10-70 

 10-10 



15- 08 



16- 73 

 20-0 





Nitric 

 gen. 



0-12 



0-096 



0- 48 



1- 87 



2- 76 

 4-68 

 4-416 



6- 6 



7- 32 

 90 



H 



= 0xy- 

 <reu re- 

 quired. 



. CO CO os to to 00 , , | 



rH O tO lO Ut> 

 rH rH O O O © 



w 



N itrous 

 Nitro- 

 gen. 



Nil 



0-99 



0-90 



0-78 



0/66 



0-48 



0-51 



Nil 



Nil 



Slight 

 trace 





•uaSoa^iii snoa) 

 -]K Ac l P3^!^t> 

 ■si o snmta 

 pacansaoo o 



9-843 



5-56 



4-74 



3-60 



0-98 



0-73 



0-92 



0-755 



0-397 



0-589 





Oxygen 

 con- 

 sumed. 



9-843 



6-694 



5-773 



4-493 



1-728 



1-28 



1-497 



0-755 



0-397 



0-589 



ft 



II 



1-23 



1-03 

 0-82 

 0-49 

 0-29 

 0-12 

 0-29 

 0-25 

 0-53 

 0-49 



P 



Albu- 

 NH 3 . 



O tOOOtOtOtOOtOO 

 tO CNOOCOrHCOCOCOO 

 rH rHrHOOOOOOO 



o 



fc' 

 II 



10-30 



8-65 



7-42 



4-12 



3-3 



1-24 



1-44 



0-29 



0-165 



0-206 



pq 





12-5 



10-5 

 90 

 5-0 

 4-0 

 1-5 

 1-75 

 0-35 

 0-20 

 0-25 



<J 



Chlo- 

 rine. 



to 



O O >p »p O t- O tp tp tp 



cs ooooDobt-oot-t^-t- 



Description of Samples. 



Effluent from Cultiva- 

 tion Tank, taken 3 

 and 5 p.m. 

 . Effluent from First 

 Tray. 



. Effluent from Second 

 Tray. 



. Effluent from Third 

 Tray. 



. Effluent from Fourth 

 Tray. 



. Effluent from Fifth 

 Tray. 



. Effluent from Sixth 

 Tray. 



. Effluent from Seventh 

 Tray. 



. Effluent from Eighth 

 Tray. 



. Effluent from Ninth 

 Tray. 



