166 Proceedings of Societies. 
2. List of Plants in Flower in the Open Air on 9th April 1863, not 
hitherto recorded as flowering at so early a date in the Botanic 
Garden. 
Rhodora canadensis. 
Rhododendron alta-clarense. 
————_——— ciliatum. 
Rhodothamnus Chamecistus. 
Phyllodoce czrulea. 
empetriformis. 
Andromeda tetragona. 
Bryanthus erectus. 
Potentilla alba. 
Euphorbia gloriosa. 
Saxifraga tridentata. 
Epimedium alpinum. 
violaceum. 
rubrum. 
Lepidium procumbens. 
Draba confusa. 
Cochlearia officinalis. 
Alyssum saxatile. 
Diclytra spectabilis. 
Fumaria lutea. 
Ranunculus montanus. 
Anemone apennina. 
Crespidium Richei. 
Symphytum tauricum. 
Holosteum umbellatum. 
Sesleria czrulea. 
Luzula sylvatica. 
Luzula pilosa. 
Carex montana. 
japonica. 
Helonias bullata. 
Sanguinaria canadensis. 
Equisetum arvense. 
Iris reticulata. 
Tulipa Gesneriana. 
Hyacinthus orientalis. 
Leucocoryne alliacea. 
Ornithogalum exscapum. 
Narcissus Tazetta. 
odorus. 
Scilla italica. 
Primula ciliata, purpurata. 
Polyanthus. 
——— _ marginata. 
viscosa. 
integrifolia. 
Pulmonaria virginica. 
Jeffersonia diphylla. 
Erica hybernica coccinea. 
alba. 
minor. 
Trillium grandiflorum. 
Sieversia triflora. 
3. List of Fruit and other Trees in Flower, and with Buds far advanced 
towards flowering, on 9th April 1863. 
Cherry, gean, pear, plum, apricot, currants, gooseberries, in full flower. 
Apple and thorn, some of the buds almost open. Elm, Norway maple, 
Canadian mespilus, Pyrus nivalis, in full flower. Thorn in full leaf, 
covered with the fruit of 1862. Thorn in full leaf, with the leaves of 
1862 still green. 
Mr John Reid, manager of the Edinburgh and Leith Gas Company, 
presented a large specimen of a new gas-coal from Gorebridge, near 
Arniston, accompanied with the following analysis :—Products from 168 
lbs. of coal—Oil tar gas and volatile matters, 82 lb. ; coke and ash, 86 Ib. ; 
gas, in cubic feet, 560=11,333 cubic feet per ton; specific gravity of gas, 
temperature 53°, 580°7, air=1000; heavy hydro-carbons, condensed by 
bromine, 15:5; carbonic acid, condensed by potash, 0°25; duration of 1 
foot of gas in maintaining a flame from single jet 4 inches in length, 83:3 
minutes ; illuminating power by photometer, 27:94 stand. candles, 
