CONTENTS

REY eR CHCHUEGROM) on Wee tae eo ora sah ot heme Sar ee ae RETR RGU ERE aes Ac ged cae ean ty ea ae eg Hk
ESI ROP STUDD EMSs i oan ks Ate ts = ahem os oes ete he ro TRag ae in Nd NT BRIG. gist, one ge tena ieee eee 9 olla en bees 5

BCI OPIE AVHRR oo cera teh, eke = terete ee a se a coe a et OR et Ck ng Pe aS eau Re AT ete ers te. aad 1€
PAR IPE CUR ICU es ero tate coh oc ae ee fee lens tie Me eee etm Teas hens ger aratn Gite ne cok, tte PR ae MME ood Sey 33

RESPIR apes cg a a eek eae Se ee Ia weg ge cree Rm aR og Pape tera apie gla cay ws werner eeebare «wena seent ate 41
BERRELER Up ra wses cc tt Moe ae og toa Se aS Foe eS maaan pep ta ence Gikeey Noe ieee Sao ea Cua ae eee neh hey aicetba 45
Manber. ae: EAS Rees area emai Oar Rye Ne Sa CRN ene ein es en re et ep iat 46
ee cs cna ee a ee 48
CSOMMELCIA! POSSIDTILTOSS sistent Ge eee GE PRE gg acy ee ec
GON GDA POO LO Sea i terre tear aT aro hay yeaa Cay ase ee Gn PE Gig OC Re nian tne Mere 55
SS EREECEUE DCO LOR Vs oie ee Se ie Se ea Ne Rak ae Sine RHE Ge Bee CO a Sata yee oR aad Gat ae Senn g «an eae wre OE RE
Economic geology... 2. 1. 1. we ee ee ee ee ee ee ee ee ee ee ee ee ee 87

aA he Wee ea Set re oye a eee es es ee mete en ep NTE! Gicediie eyes Saas Gane OE aye ees 145

Illustrations

Map 1585. Mackenzie River basin, northwestern Canada.. .. .. .... .. .. ..in pocket.
Plate I, PAT ORAM: PLES ces pee oe ee ee Se ae hah ete eS EL ten eee et TONLIBDICCEs
BES Ace UEC Gian MDAC Aes cot sear aah iis ke Mone ae tee le oe Sena, eee eS 131

IB AReING COL MOUNT Lams ease ea SSOP hg on a oh Ree Re See 131

Pel VASA CHAD AGK AR TIVGD feo cies as ere RS OT nee ae Gh aa nS ee eee 132
BGAN Gs PA Os esse seca aeeec sae eis OR Re ade Me ene ae OF oe EER 132

IV. A. Lower falls on Hay river.. Biss egies RISB hE GAG SRS cee ed Ey 133
Be atlSe oO Meshal ZA Me PIV CT eo ihe cfs genes Sve se ee eo Ae ies ee ee ee 133

Vv. Garden ot oct Smiths ee ee 134
VI. Salt pine west -Orure omitting Pe ee ee 135
Vili. Buffalo range... .... Soph Po a aan eo ea Nee pee ale Seay Pat aE 136
VIII. Tie 4 daveau ee Gh ake GN ee ee 137

Picok Chipewyan. sobs eae ie es eh es Be ee ee Se ee 138
EB Port McPherson. Bre tea ames ss ges on trees he Ge eg aa Re a ag ID 138

Se Desdwiae lensetene BE eg: pee Puen: eee ERE [ey 139
D.@ Hae. (Gorge on Hay river... BER Papa tae SF gah ha Oe eg sant meer gee ape ain dey. 140
B. The RamMpAaris: | Wia ChienZlevTEVGD sti Scie eer ees A eee 140
DEL AS Bitunnnous Sang Wieit-2Tage. 6... ie ye eee eS eS ae 141
Bs SS IGUNTINOUSE SANG, (HOW SETA GO soi cot enn eae og fhe one etn er eae 141
IEEE: CUTE: Of Pay S Uses os eS se Se CR Sa ee FORGE Oy ne Ul eee eee pS CE 142
EXEEV:. Rahs SDT ES ae Seopers ae he Caer as He peg eee Peta ee cs Che pe es Se na ae Se 143
Figure 1. Diagram of the Mackenzie River basin, and its main physiographical
Bee CULO cy os ies Mies Gare ic a ie et ac Maan ee Eee aes Eee ec ee 10
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15850—13 Re