304 BOTANICAL GAZETTE [ocToBER 
Time BANDS 
Name of plant in | Color of solution 
Lares I Il III IV | V|VI\Vil 
Abutilon (golden bells) 
(young leaf) 5 typical green d d (0) f rt) djdjid 
Saneieas Sprengeri....... 30 light green d vf vi 0) o|djid 
Avena | — "aml Brats, 5 bright green d d f ° di aid 
Begonia coccinea......, un | yellow d ° ° f djdjid 
non coc cnea: Sires gra Ga 15 brown-yellow d (f) o (f) dio) | dj} did 
fp omy 10 bright lig d o (f) o (f) ° oj}did 
Cestram elegans (young leaf)| 5 dark d f (vf) f t) djdjid 
: cs yeant " 30 pale ot d | f£(0) 0 ° djdjid 
uphorbia Ic errima 
(Pabeartite) f) 10 dark green d f (0) f ° djd ‘ 
Ficus elastica *hacvined and 120 pale green d f oO f djd i 
Ficus elastica as leaf)..} 15 pale green d | d() | 4 {0} f(0) | dj d 4 
Ficus Fees oung leaves) | 10 pale green Pee pee ate f (o Co) djd 4 
Fuchsia speciosa........... 15 vellow-green d o (f) o (f) f(o) | d 4 4 
Heders Hel (English ivy)... 5 dark green d | d(o) | f@) | vi@j)d 
Heliotropi hee sta 
(Heliotrope)...... St ig >. pale green d | f (vf) o (f) o d a\d 
— Sultani an ees 15 bright green d | fo) | 39. o d 
acobinia magnifica (young 
30 dark green d f f ce) dj dj4 
copersicum esculentum 
a omato ).. et ee 10 pale green d vi vi () ‘1 d. ‘ i 
Oxalis Bowiei.....:....... 15 yellow-green d f o (f) | d(o)f(o) nt ata 
2 se ha sia aa 15 yellow-green d : 0 B d (0) aldaiéd 
a petiete I 5 green-yellow d f (o) 0 (o)-| d (0) dida\d 
Pelargoni male. 15 brown-yellow d f o (f) d (0) d|ald 
Primula ibouics 2 ee bright green d | f(o) | £ (vf) . 
Primula ws fon me (Chinese dick al aw f diaié 
Perse ethics a ive 15 ark green d 
latin verticillata... 5 pale green d f (0) f (vf) . 4 4 d. 
= phan ti — 2 bright green d | d(o) | £(f) 2 P 
es communis castor 
Re en os: 15 pale d | f(vf) | f (fh) 2 ‘ : a 
Salvia involucrata.......... 30 pale green ait (0) f . o |d(o)| 4 
Senecio mikanioides........ 15 pale green d (f) © is dijdajd 
Petasitis.. 4.5... .. 15 typical green d f f ” t 
Tippacokim majus (nas- o {dod} 4 
< i AL ene eee 30 typical green {d (f) ° . é d d 
Vicia Faba (horse bean).. 2 bright green | d f f oe 
Se 
ing bands I, II, III, V, VI, and VII, given by living leaves and by ea 
made by extracting the chlorophyll quickly with only a nie ‘ 
of heat; and the “decomposition chlorophyll spectrum,” havens solutions 
II, IV, V, VI, and VII. This decomposition spectrum is given by ( 
(a) from boiled leaves, (b) from leaves which contain acid salts ‘s cad 
etc.), (c) by solutions made by prolonged immersion . oe adding 
alcohol, (d) by solutions in which the chlorophyll is decomposed sof few 
a drop of hydrochloric acid, or by exposure to direct oe 
minutes, and (e) by living leaves after standing in water — an extra 
On further decomposition of chlorophyll by light oF ne disspr : 
band appears in the green beyond IV and band V in the bine 
It is to be remembered that these spectra were given by sna | 
made as described above. With weaker solutions the ba nds bec 
and with increasing diluteness bands II and TIT disappeat of the poral 
Comparatively few living leaves show all the bands : 
