Memoirs presented to the Cambridge philosophical society on the occasion of the jubilee of Sir George Gabriel Stokes, bart., Hon. LL. D., Hon. SC. D., Lucasian professor.

(C bide 'P/.ilosophiclc - 7Tansactions, Vol. XI 1/L, Plates 1 9, 20
PLATE 19.
A..tbsorptionls by nearly éq. tuiva lent solutions oef d.cidlniun cîhl:oride in water, in alcohol, atnd iln alcohol
changed with h 'droclor.'i aceid, Theé aciCl solu.ti on iwas.rprepaird from. tl] e neutral ailcoholie solution.p by
t~passin.g hydrochlioric acid gas infto it a,nfd was tfund to lbe a.:)out:li:ne-ttenthis of théi strength in didyminiu.
otf 'Xth(e iteuf tra, soln t ioo n,
0'; I:i < ~L *L Cti 0:. > 0. -i ~ > s* +
ineuttril agnieous solution.
ne utral alcotielio solution
a od acl. oli.i solution
it/
Tlhté g lra(!'tl 1t>0J)t.io 110 ltt tf.li or r'' tnefhrnil ctd is xteund3cd a litiffe b1y ttle aico011ol ad1 dJ. tiil
'0lore iy lihe tlddition tof 0ci.d,
Tlcé n'al:balds a'e gelr(ct<lly t'enlretcd imo.re' difiise 100<> tcîcitttl lnld an little sbuift;cd touardss thl ied el:d if
t:lo. s]'ectrtl: tii:> shiit! il-treatsina g ns t]':e re:<ifrangibiit?" dcireaices.
Tle tl acid seem)is o diftin-se aiwa.y th baltnds in th, blue, t:es strong air at about X-0 aO Lre just
visible in t;he spectr'ml of t l.eto a<eiid so>lut.ioni corlsidetrali bl shifted to:wa;rds tlle red. Anid thel strong' gr'ou
il. thi. ye l(ow is still. sio t ' cIl ' '<if I > s piea, nd uf:.d ()lit thc..tt S\iveral of thie cotopoinentt bands:e sear at-'cratetd
P: I-,A.T[,E "2,
<.A bto.l'tptio.l by équia..cetin.t so.ution.s ot tf d.iyntim.tlln te't in wtt:er a, f nd. ln. glycetroi.l
( S t; ry, <s rI
-ï-O -. i,:'n '. ":' <s < s S
tI _~<< "'0<.':l~ <~aq.ueo t s soluttion
glycerol solution.No ietn i.te shlifof the tht l h gtvertil ttt-ppers in thi 'ltototgî )]-I, l)ut there. ist ac xt nson.
of thlic grcl-tter'l absctrpttio at;il tlthe itmore refrt<angible ettci of thtl st-pctcftit:tand the bucds are rendered moro
difftse by ttfl.ci glycerol.