CARBON IN ORGANIC SUBSTANCES BY THE KJELDAHL METHOD. 



757 



A sample of Narcotine, the analysis of which had been made in the Chemical Labora- 

 tory of the University, was kindly given to the author by Professor Crum Brown. The 

 following is the result of analysis by the author's method, compared with the theoretical 

 yield and the amount got by combustion. 



Carbon, .... 

 Nitrogen, .... 



Table II. — Table showing the Results got by the Method in Various Waters. 



Theory. 



Combustion. 



New Method 



63'92 



6372 



63-80 



339 



347 



3-33 











Parts per 



100,000. 





Name of Water. 





Date. 

















Free 



Albuminoid 



Organic 



Organic 









Ammonia. 



Ammonia. 



Carbon. 



Nitrogen. 



Filtered Moorfoot Water, 



Sept. 



27, 1893. 



0-0002 



0-0066 



0-344 



0-0517 



)» n 





Oct. 



6, » 



o-oo 



0-0145 



0-378 



0-048 



)) >) 





?» 



14, „ 



0-0005 



00108 



0-342 



0-0465 



Unfiltered ,, 





)) 



21, „ 



0-0016 



0-0230 



0-404 



0-0344 



Filtered „ 





)> 



27, „ 



0-0004 



0-0118 



0-355 



0-0256 



» !) 





Nov. 



3, ,, 



o-oo 



0-0154 



0-333 



0-0245 



)) II 





>) 



10, „ 



0-0002 



0-0138 



0-3654 



0-0334 



)? »? 





yj 



17, „ 



o-ooio 



00164 



0-403 



0-0301 



>> >) 





>> 



24, „ 



0-0002 



0-0140 



0-424 



0-0256 



') )) 





Dec. 



4, „ 



o-oo 



0-0118 



0-446 



0-0238 



J) I-} 





n 



"> )) 



not dete 



rmined. 



0-438 



0-0236 



Crurnmock Lake, Cumberland, 





Jan. 



16, 1894. 



o-oo 



0-006 



0-188 



0-0163 



Bakewell Water Supply, 





j? 



23, „ 



0-0008 



0-005 



0-2043 



0-0112 



Talla Water, . . 





Mar. 



24, „ 



not dete 



rmined. 



0-1827 



0-0168 



Fruid ,, ... 





JJ 



» J) 



>) 



)> 



0-2632 



0-0276 



Loch Katrine, 





Apri: 



16, „ 



0-0002 



0-0048 



0-3090 



0-02346 



,, 20 ft. from surface, 



Aug. 



27, „ 



o-oo 



0-0078 



0-2524 



0-0145 



40 



)J 



if » 



o-oo 



0-0072 



0-3062 



0-0188 



60 



> 



) 



J) 



?> >1 



0-0002 



0-0053 



0-2596 



0-0188 



80 



i 





)) 



)) >) 



o-oo 



0-0058 



0-2686 



0-0168 



100 



3 



J 



>> 



J7 )> 



o-oo 



0-0050 



0-2149 



0-0138 



120 





, 



?> 



V> J? 



o-oo 



0-0068 



0-2337 



0-0148 



140 



, 





Jj 



» )> 



0-0004 



0-0066 



0-2311 



0-0145 



St Mary's Loch, 20 





„ 



)» 



16, „ 



o-oo 



0-0098 



0-3814 



0-0208 



40 





>> 



jj 



>? 3> 



0-0004 



0-0124 



0-3439 



0-0172 



60 



, 





5) 



» J) 



o-oo 



0-0072 



0-3036 



0-0136 



80 



, 







>) ») 



0-0008 



0-0072 



0-3224 



0-0185 



100 



, 



, 



J> 



JJ J> 



o-oo 



00056 



0-2043 



0-0083 



120 





J 





J) J> 



0-0006 



0-0058 



0-2875 



0-0164 



140 





J 



>» 



)' >> 



o-oo 



0-0080 



0-3036 



0-0169 



Loch Lomond, .... 



Dec. 



1, „ 



o-oo 



0-0164 



0-3654 



0-0230 



Surface Well, Cheshire, 









0-0018 



0-0146 



0-1504 



0-0310 



„ „ Forfarshire, . 









0-0005 



0-0206 



0-5426 



0-0544 



7> )> it 









0-0120 



0-0206 



0-591 



0-0738 



„ „ Caithness, 









0-0590 



0-0200 



0-666 



0-0742 



„ „ East Lothian, 









o-oo 



0-019 



0-3116 



0-0412 



» )> J? • 









0-0004 



0-006 



0-2122 



0-0177 



„ „ Berwickshire, 









o-oo 



0-0038 



0-1907 



0-0170 



V 5) >J - 









o-ooi 



0-0402 



0-5266 



0-0660 



„ „ Morayshire, . 









o-oo 



0-0078 



0-2860 



0-0250 



„ „ Lincolnshire, . 









0-0048 



0030 



0-634 



0-0942 



