ON THE GROWTH AND VITALITY OF SEEDS. 31 
14. The alkaline salts of towns increase the vapidness of water. They 
abound in river-water which receives the refuse of towns, and cannot be 
tered out. The difference between the hardness of water and the amount 
water per gallon gives a measure of impurity, as it indicates other than 
lime salts, whilst the lime salts affect least the taste of the water. 
15. A slight acidity removes vapidness, and produces a perception of cool- 
s in the mouth. 
16. Water can never stand long with advantage, unless on a very large 
scale, and should be used when collected or as soon as filtered. 
ighth Report of a Committee, consisting of H. EK. StricKLAND, Esq., 
zis Davuseny, Prof. Henstow, and Prof. Linpu5y, appointed 
to continue their Experiments on the Growth and Vitality of Seeds. 
PORTION of all the kinds of seeds collected in 1845 has been sown this 
year, together with those of a few additional genera collected in 1847. 
_ The results will be seen by reference to the following Table :— 
No. of Seeds of each ; z 
Species which vege- Time of vegetating 
a No tated at in days at 
| Name and Date when gathered. ses | Sp sea a TI EE CS 
ica Hitcham. See a Hitcham. pes 
1845. 
1 Ailanthus glandulosa......... DO |edhied| cevesds Forh VeeUlcaslead|ieedsenasen | ent 
2. Alnus glutinosa «...+....se00+ 150 
Alonsoa incisa ......s.ssse0e YOO: |oi8s..0) waous gees 5: 
Beta vulgaris .........seecceees 75 | 74 33 | 48) 8 10 | 13 
Browallia elata SUMS ee 6 
75 29 | 18 | 12 13 | 18 
14 6 A cathe 42 
viueed tedevdiose ND 
Fagus sylvatica .......+ Teacate 
Fumaria spicata ...............| 100 [......] cecsseeee 5 
Gaillardia aristata ............ 100 
20 
iT |bsaeeal outers 4 |. testes | 32 
ies Pecatilic esaveeemis ..| 50 
-Lopezia TACEMOSA .se.seeereee 150 |1382| 388 | 98 | 10 9 | 13 
16. Lymnanthes Douglasii ...... 50 
17. Petunia odorata ...... seeese| 150 
Schizopetalon Walkeri ......| 50 | 14 4 | 12} 10 13 
sgichinalsian nite Os | ech'se A sb ceclaabiaaasagh oye hh 
jpartium Scoparium ......... 200 |...... 6 | 82|......) 35 
getes lucida .............6- WAG fies. «ccweeees 5 
Verbena Aubletia ............ 100 
et ect oe 150 | 17 1 A }.sscns] 28 
-Xeranthemum annuum ......| 100 
ey sida Cae haa 100 | 34 69 | 24) 8 9 | 13 
ja grandiflora ............ 11 gt ee a 2 
1) en 47. 
CardiospermumHalicacabum| 25 | 20 WG | Ble ccvee — 4 1138 
Grrastinm perfoliatum ...... 100 | 3 1 | 10)...... 7 
. Cheenostoma polyantha......| 100 |......| ..... wees | 
