25 
No. 
o 
plot. 
Straw. 
grms. 
Full 
grain. 
grms 
Empty 
grain. 
grms. 
28 
5 .gg grms. unrecovered P2O5 . 
442 
326 
5.8 
33 
»» »» |> •••••• 
380 
282 
4-9 
43 
If ft 11 •••••• 
394 
293 
3-9 
29 
10.38 grms. unrecovered P2O5. 
452 
366 
6.2 
39 
ft 11 M .. 
444 
323 
5 - 1 
44 
ft ft » . 
465 
378 
5-2 
3 ° 
13.98 grms. unrecovered P2O5. 
523 
431 
6.2 
40 
>» 11 »»•••••• 
563 
435 
7.2 
45 
11 11 »»•••••• 
467 
342 
5-3 
5 
18.0g grms. unrecovered P2O5. 
626 
45 1 
7.6 
l 7 
11 11 »»•••••• 
526 
452 
7-5 
24 
11 11 11 . 
55 ° 
472 
7.2 
31 
2T.73 grms. unrecovered P2O5. 
555 
44 1 
5-4 
41 
11 11 11 . 
604 
495 
8.2 
46 
11 11 11 . 
III. Series. 
Unreeovered Phosphoric 
Acid from Various 
Phosphates. 
5 2 5 
442 
6.7 
I 
No P 2 0 5 . 
421 
283 
5 -r 
20 
n 11 .... 
386 
278 
3-3 
39 
11 11 • • •• •• •• •• •• •• 
374 
261 
4.9 
4 
Double Superph., single dose. 
406 
3 H 
4.2 
23 
11 11 11 »> . 
339 
256 
3-2 
42 
11 11 11 11 . 
456 
352 
5 -i 
