Division in the Root of Vicia Faba. 
163 
ard, the increased or retarded growth caused by the use of 
the chemical solutions, can be readily perceived. The follow- 
ing tables show the daily increase in the length of the roots in 
the various solutions : 
Feb. 7. 9 10 | 12 13 14 15 || Dec. 13 15 16 18 gL) 
mm | ‘mam. | 
H,0. 7 20 38 | 40 56 75 || HO. 3 11 41 60 
6 | 13 | 30 | 37 | 50 | 60 || 6 | 16 | 382 | 46 
Peas. 2 11 35 | 50 60 80 Peas. 6 23 45 | 58 
4 13 18 | 32 36 60 || 9 16 35 | 54 
3 | 26 | 37 | 45 | 56 || |. ..| 20 | 32 
Beans. if 2 | 33 42 59 || Beans. aly iD 30 
este) Wa!) 44 56 77 |i | 
| | 
NaCl 34. 7 | 18 | 3 | 42 | 50 | 65 || Nacl4as. 97-1) 20) 1) 55° 6u 
6 19 40 52 62 | 76 3 12 | 30 45 
Peas. 6 19 | 32 36 45 | 56 Peas. 9 19 47 5 
6 144 | B 30 40 | 55 Z 12 30 40 
..| 40 | 50 | 55 | 60 sees 
Beans. |. peal ss 26 24 35 || Beans. |} 13 26 
2 Z 30 58 82 | 10: || of 29 34 
i {| | | 
) 1 
NaCl 4%. 7 18 59 72 87 | 106 NaCl 34. 6 19 47 50 
7 20 78 82 95 | 110 2 11 46 57 
Peas, 6 14 39 43 60 7 | Peas. 1 12 46 53 
6 18 40 | 52 65 | 85 6 20 38 58 
| j | 
ei Ni ee, 34 45 56 || 1 17 40 
Beans. 3 | 46 52 56 67 || Beans. ace oy | peu 51 
sendie ae 40 47 64 || 4h a |, Ee 31 
| 
NaCl 34. 5 11 65 76 94 | 104 || NaCl 2s. 4 21 70 97 
7 17 5d 70 86 | 100 || a 19 65 7 
Peas. 6 15 42 43 50 59 Peas. 14 25 55 73 
7 19 35 37 74 92 7 15 40 74 
25 35 45 60 2 25 50 
Beans. |} 15 22 30 53 Beans, 1 23 47 
| 18 32 47 63 1 25 51 
| | 
| l} 
NaCl 44%. 7 15 60! || 72 91 | 106 | 
7 20 53 65 80 93 
Peas. 6 14 40 62 7 87 
7 17 40 47 65 77 
ale 5 46 72 77 
Beans. 3 44 58 71 86 
HTS SS 100) [106% || 
\ ' i} 
NaCl 44. TaN ota) 5G 83 | 96 
15 29 60 78 97) 1120 
Peas. 10 27 | 40 67 80 | 92 
6 | 13 | 37 | 50 | 67 | 87 | 
1 30 47 55 87 
Beans. 1 40 50 63 LIN | 
3 45 58 7: 100 || 
