CONTENTS. 



TiTLEPAGE ......... 



Preface ......... 



Contents ......... 



Glossary ......... 



TOPOGRAI'IIV OK A l>li;i) ...... 



iNTRODrCTION ........ 



How TO JVIkasure a I>n;i) . 



Index to Key to Families. Water IJinns 



Group 1. Toes, four, with lobate we])s, or wi'hs on skies of toes . 



Group 2. Toes, four; front toes pnlninte (full webbed); hind toe not eou 



nected with fi'ont ones l)y we]» " . 

 Group 3. Toes, fonr, full webbed ; liind toe connected with front ones ])Y 



wel) ....... 



Group 4. Toes, four, not full web])ed ; small wel)S between toes at base, o 



toes entirely witliout weh 

 Section 1. Hind toe, raised above level of front t 

 Section 2. Hind toe, on level with front toes 

 (Jnoup ."). Toes, three, full webbed; no hind toe 



Group 0. Toes, three; a small web between toes, or entirely without web 

 Kev to iiik Si'ec'ies op AVater Uirds (»k Kastkrn Xoi;tii Ami.i.ka 



Fa^III.V roOICII'ID.K. ( iWKl'.ES ..... 



Family (Iaviid.k. Loons ...... 



Family Al(ii>.k. Aiks, Pi i pins, and Mprrks 



Family Si i.i;( oi; aimid.l. Si;ias and .I.i.(;ers 



Faaiily Lal'id.k. (Jii.ls and Tkuns .... 



Si IJEAMILY LaLMN.E. (ill.LS ..... 



Si iiPAMiLY Stkrxin.k. 'I'r.RNS ..... 

 Famiii Kii'* Nfiioi'iD.i.. Skimmi.i;> .... 



1'"amii.i I >ioMKi>i,ii>.r. Ai i; \ii;o>si> .... 



(V) 



