exxx Proceedings of the Asiatic Soc. of Bengal. [N.S., XVII, 
Cag i oes )26H20 separates in tho cold with i hoo rapidity up to 
70°C. onverts it into Ca 3 (CgsH;0.), 4H 
Caz “(CaHlsOn, 4H,0 Bets precipitated at ily a above 70°C. 
Its solubility dboreases with i aie 
8H;07). 14H,0 is obtai any calcium citrate is heated 
to 110°C With water it iahvidrabes 7 "Cag CoEtgOn)o4 HAO with evolution 
of heat. 
Analogous to the. jelly-like calcium citrate, the hexa hydrate, and 
the tetra hydrate, a jelly like strontium citrate, a penta hydrate and a 
monohydrate, with almost similar properties, have been obtained. 
Some induced reactions.—By N. R. Duar. 
A solution “a mercuric chloride can be reduced by oxalic acid, 
tartaric acid, etc.. in the dark only by the action of oxidizing agents like 
KMn0Oyj, K,S8.03, ate. 
(b) The mansion of solutions of sodium arsenite, sodium formate, 
sodium oxalate, sodium nitrite and ferrous ammonium sul phate by 
atmospheric sore can = induced by the “sepigesuiernbg oxidaston of 
sodium sulph stanuous chloride, manganou ot hygeine" gag 
hydroxide, hootaidahydo, Tormaldebyae, bbonzaldehyde, b 
(ce) ecom position temperature of potassiu acehlente is appre 
ably “lowered by by the presence of Seaceuren ing ammonium dichromate o 
pers 
(d) It seems probable that one ese a will either induce or 
—s mggsre chemical = nge ame nature 
(e) I — reaction a er momenon of negati ve catalysis is 
possible only when the negative catalyst is liable to be oxidized readily. 
(f) A ferrous salt acts as an inductor in the reactions between mer- 
curie chloride and an oeeinke or a tartate or a citrate. 
Studies in ionic adsorption.—By N. G. Cuarrersrs. 
The hry Be chemically pure hydrated manganese dioxide as an 
adsorben observed in the case os a . euee number of electrolytes. 
The pee bse frase have ble obtain 
(1) The cation is much more Pei bed than the anion 
(2) Sais —— of adso seed rei is Bits quick and the temperature 
cient is extremely 
(3) Relatively et is adsorbed fratis a dilute solution than from a 
(4) Nomeletrolytes that decrease the surface tension increase ad- 
(5) The. rs propor rtion of the bivalent ions adsorbed is the 
rr fio those electrolytes which have the same degree of 
e diluti 
(6) Froundlich’s simple law ‘of adsorption i is more or less obeyed. 
Some methods of sugar analysis.—By Ramat Narain. 
The author —— some modifications in the methods for use in 
the — of sucrose and reducing s sugars. 
l. The 
Fehling’s Solation can be very conveniently and a re verted 
cupric oxide by heating the Gooch Sedcibis ‘Sondaining it in the 
ufile furnace for 45 minutes. The asbestos used in the crucible should 
2 se can od estimated in its mixture by inverting it with 10 
per cent citric acid and heating over the water bath for 12 to 15 minutes 
after it has attained the te temperature of the bath. The met shoes so fac 
recom ended (using acids for inversion result in the partial destruction 
