IMPORTANT EXPERIMENTS BY DR. THOMSON. 
382 
34. Adiantum lu/rulutitm. A fern covering 
oil) walls during ihe rains. 
35. Avidcnnnia tomento-^a. Very common 
in salt maisiies. 1 have seen it as large as a 
middle sized tree; it adorns the banks of 
creeks and rivers, gi owing in the water as well 
as out of it. 
36. Acanthus Sea holly, Looks 
pretty when in flower (dark blue colour) ; 
grows common among the Avidcennia plants. 
37. Artahotrys oHorotissimuH. I have only 
seen it inggardens ; it is a pretty scandent ever- 
green plant, with very sweet smelling but 
insignificant looking flowers, as all the Anno- 
naceae have. Decandolle calls it Unona 
tincinntu. 
3d. Aegiceras mr/;r;.s or can del. Found com- 
mon in salt marshes ; it has pretty dark green 
leaves with while flowers. 
39. Argyreia cuneata Sprengel. A shrub 
with very beautilul blue bell looking flowers. 
When near any support it is scandent and 
sends out long slender branches. Roxbugh 
refers it to genus Lettsomia. I have only 
found it on a range of hills about 24 miles west 
of Poona near Wurgaum. It is grown as an 
ornamental shrub in tlie gardens at Poona, 
but I have never met wiili it here. 
40. Agave Amerxca. 1 have only seen it in 
gardens at Seroor and Aurangabad. 
41. Agrostis linearis. A common grass. 
42. Anthericum tuberosum. Springs up 
during the rains on rocky waste land. 
43. Boerhaavia diffusa. 
44. Boerhaavia erccta. Found about 30 
miles N. E. from Poona. Stems woody, as 
thick as a man’s finger. 
45. Basella «//)n! and rt/6rn. Varieties cul- 
tivated as root lierbs ; the leaves are thick and 
succulent, and afford an excellent subsliiule 
for cabbage. 
46. Bromelia naurtas. Pineapple. 
47. Bambnsa ciruudinacea. Common and 
well known Bamboo. 
48. Bryophyllum calj/cinvm. Growing in 
(.ocoa-nut groves; rather pretty when in 
^Qwer ; grown in flower pots as an orna- 
mental plant. 
49. B. uhiniaspecmsr)' 
•50. B. ,, Candida 
51. B. ,, varieaata 
52. B. ,, pnrviflora 
53. Bergera AoufyO. Cultivated for its 
leaves wdiicluhe natives use in curries. The 
native doctors use the bark and roots as a 
stimulant. 
54. B. integerrima. Found near Panwell 
on the main land. 
55. Bassia long i/o/m. A common tree. The 
intoxicating spirit called mowra is distilled 
from the flower. Oil is also expressed from 
the seeds. It is a very common and 
useful tree. The oil obtained from the seeds 
is extensively used for adulterating glue. 
66. Bignonia 4-locularis. Common in the 
jungles, and somewhat resembling the ash. 
The white flowers rising from the ends of the 
branches look showy at a distance, but cannot 
bear inspection. 
67. Bignonia spotkacea. , r , 
58. Bignonia radicans. I have only found 
these two in gardens ; both have pretty flowers, 
paiticularly the latter; it is a shrub of very 
slow growth, and was brought fiom China, 
I believe. 
(To be continued.) 
SUGAR FROM URINE. 
It has long been ascertained that the urine 
of persons afflicted with diabetes, contained 
pure sugar. '1 he following account of a loaf 
ot sugar from such a source shows that the 
manufacture has increased. Indeed the sugar 
vyotild, for cheapness of the raw material^ 
rival that either fiom the best cane or Indian 
corn ; but, unfortunately, diabetes is a disease 
ofraie occurrence, ami, with the exception 
of a few local instances, we are convinced 
that the supply from this source may.be 
considered as absolutely nothing. “ M. 
Peligot has presented to the Societe^^Philoma- 
thique, a loaf of sugar which he had extracted 
from the urine of a patient now in the hospital 
of La Charit^, afflicted with the saccharine 
diabetes, ibis man voids about twenty quarts 
of urine a day, of which five parts in every 
hundred is sugar.” n 
EXPERIMENTS ON THE HEAT OR! 
COLD PRODUCED BY DISSOLV- 
ING SALTS IN WATER. 
By ThOxUas Thomson, M. D., F, R. S. L. 
& E., &c., Reo'ius Professor of Chemistry in 
the University of Glasgow. 
1. 300 grains of crystallized carbonate of 
soda in povvder, were thrown into 1000 grains 
of water of the temperature 59° in a tumbler, 
and the mixture was stirred till the salt was. 
dissolved ; the thermometer sunk to 43« or 16 
degrees. 
'I he water of crystallization in 300 grains of 
carbonate of soda is 187§ grains ; which is 
one-seventh of l300 grains, the whole of the 
liquid and salt included. Now, the water of 
crystallization becoming liquid would absorb 
140^ of heat. Hence the temperature oiivht 
to have sunk one-seventh of 140 or 20°. 
But the fall w'as only 16^; the difference 
is owing to the quantity of heat given out by 
the glass tumbler, wdiich of course would 
prevent the temperature fiom sinking so low 
as it otlierwise would have done. 
300 grains of anhydrous carbonate of soda 
in powder, were thrown into 1000 grains of 
water of the temperature 57°'5, and stirred' 
with a thermometer till the temperature 
ceased to rise. The thermometer rose from 
57°'5 to 79*^'5 or 22®' In another experiment 
from 6l® to 82®*5 or 2l®‘5* There remained 
undissolved 7-7 grains of salt. 'I he water of 
crystallization seems to be absorbed by ibis 
salt in the first place ; hence the reason of the 
rise of temperature. This water amounts 
to 182^ grains or about one-seventhc of 
the salt and water. Hence, the rise of 
temperature should be one-seventh of 140 
j Trees with pretty 
^ flowers, particu- 
larly the itar/cguta. 
