35>ii llii Auk ririln ( ii nhx/tsf. 
|).Ti|lll»T. IS'.U' 
the r('s«';ircli wliicli they li:i\i' coiiiliK-tiMl. their icsiilts linvc bcciii 
ic'icIkmI iii(li'|)('ii(lciitly. and aiitciidr tu ;ill ot licr |)('tn>;i:i;i))li('rs. 
In coiiclii-^ioii we would sii<i<ii"st ili;it pcrluips. if tlic inili:il step' 
of the (•oiijmiction of two (liUcfiiiii' niolcciilcs into chciiiiciil union 
Ik' iidniitlcd :is the stMitinii' point, sucli :is tiic niolccnh-s whicli 
nuikc one nioU'cuh- of oit iiochisc. thi-rc iu:i\ iinxc liccn dt-vciopcd 
cMoiiLi'h li*':it to ciiiisc the similni' union of two others. 
:ind th:it two otiiers. ml in I'l u it inn oi- ml /I/kih. liins picHnot inii 
the loc;d dilferenee of heiit rtMinifed on wiiich to post nl:ite t he 
lot'id dittefence of inoiecnljir inoltiiily. It seems liuit theiniti;i 
tion ;ind the nniintennnce of thejifowth of spiieinlitie civstMlii/.:! 
tion. in the smiih' iniinnei' :is of :dl other .efyst;dliz;it ion, 
ninsl l>e son<2;ht for in tiie ocenh hiws :ind rehitions of clieni- 
ic:d nlliiiity. It niso seeenis tluit on physical attendant 
eon<litions depend tlie forms of oroul h wliieii tlie crystal 
lizine; mtittef shall take mi. It is necessary to seek for thosi' 
physical snffonndiiiiis in the maiiina. in the case of sphefnlites.. 
wiiieli may iiave pfex'ented the second and sneeeedinii' niolecidcs 
of orthoclase from j)lacin<i themselves alonuside of their earlier 
Itrothers in accordance witii the laws of the crystal system to which 
oi1 hoelase lielon^s. ;ind tinis from Unildin^ np a [»eifeet mono 
clinic form. 
IM-:\'Ii:\\' OF HKCMvNT (; KOLOC; ICA L 
iJTEiiA^riin:. 
(uiiloiiinil iiinl y.ihind lii.-^lorji Snrrrf/ ,,f Cannhi. Atj-I!KI> Ii. ( '. Ski,- 
WYN, IHrcrliir : Aiiinuif /t'eporf, Ai m SirifK, ro/. IV, fur /6'n.s-.S.'>. .Mont- 
real: 1S!»(). SvD, pp. .\.\ix, 10.")4: with three plates ongnived from photo 
iiraplis, fonr maps, and a slieet of sections. Price. !»;•.'. Tlic suiiiniarx 
reports of the operations of tiie Snrvey dnrini;- ISS1». jiy the (lirectur and 
assistants, comprises 6(» pat?es. Tlie cost of tlie Snrvey dnrinii,' tlie liscal 
year ending-.lnne :!(>tli, 188!», was .1;lOO,()(l7.1Mi. Sales of the Snrv.-y pnh 
lieations in 1S8!) amounted to S-,!>0!)..")T: and within this year tlic iiinni)er 
ol visitors to the Snrvey ^luseuni was 1S,:',(M), hein.n' an increase of ss(; 
as (•ompan'<l with the i)revions year. Tins volnnie also in<-lndes the 
followiuii; papers. 
Iltliort OH II ixnlioi, .,f ll,< \V,st l\,>,,tiinii lh'xlri<'l. lirilish ( ,,l >i ,„lil<i . 
I86!>. I»y <»KOiiGK 'SI. D.vwsox. Xnmerous recent discoveri<'s of vain 
able silver -hearinir ores in the inonntainons country adjoining Kootanie 
lake and the Ipper and l.owci- .\rrow lakes of the ("oluniliia. h-d to the 
