OF ARTS AND SCIENCES. 47 



numbers of small tadpoles in Carter Lake by the 22d of July. 

 The following sixteen breeding birds are characteristic of this up- 

 per Canadian zone in New Hampshire : Canadian Spruce Grouse 

 Canachites canadensis canace}, American Goshawk (Accipiter 

 atricapillus} , Arctic Three-toed Woodpecker (Picoides arcti- 

 cus}, American Three-toed Woodpecker (Picoides americanus}, 

 Yellow-bellied Flycatcher (Empidonax flaviventris} , Canada 

 Jay (Perisoreus canadensis}, Rusty Blackbird (Scolecophagus 

 carolinus}, Canadian Pine Grosbeak (Pinicola enuclcator leu- 

 cura}, White-winged Crossbill (Loxia leucoptera}, Pine Siskin 

 ( Spinns pinus} , Tennessee Warbler (Hehninthophilaperegrina} , 

 Cape May Warbler (Dendroica tigrina}, Black-poll Warbler 

 (Dendroica striata}, Wilson's Warbler ( Wilsoniapusilla ) , Hud- 

 sonian Chickadee (Pants hndsonicus} , and Bicknell's Thrush 

 HylocicJila alicice bicknelli}. 



Of mammals characteristic of this area are the Rock Vole 

 (Microtus ckrotorrkinus) , (?), Canada White-footed Mouse (Pe- 

 romyscus canadensis ) , Woodland Jumping Mouse (Napceozapns 

 insignis}, Canadian Red Squirrel ( Sciiirns Jiudsonicns gymni- 

 ctis), Smoky Shrew {Sore* fumeus) ^ Water Shrew (Sorex albi- 

 barbis], Canada Lynx (Lynx canadensis}, Sable (Mnstela amer- 

 icana}, Pennant's Marten (Mustela pcnna nti). 



In addition to the species more or less strictly confined to 

 each of these two subdivisions of the Canadian zone, may be 

 mentioned a few which are common to the area as a whole. 

 Such are Saw- whet Owl (Nyctala acadica), Hairy Woodpecker 

 (Dryobates villosiis}, White-throated Sparrow (ZonotricJiia albi- 

 collis}, Slate-colored Junco ( Jnnco hycmalis}, Nashville War- 

 bler (Helminthophila nibricapilla} , Myrtle Warbler (Dendroica 

 corona to], Winter Wren (Olbiorchihis hiemalis} , Red-breasted 

 Nuthatch (Sitta canadensis}, Golden-crowned Kinglet (Regulus 

 satrapa}, and Olive-backed Thrush (Hylocichla nstnlata swain- 

 sonii} also the following mammals: Northern Virginia Deer 

 (Odocoileus virginianus borealis}, Canada Porcupine (EritJiizon 

 dorsatnm}, Eastern Varying Hare (Lepus americanus virginia- 

 nus}, Mink (Pntorius vison}, Black' Bear (Ursus americanus}, 

 Masked SHrew (Sorex personatns}. 



