xa Lloyd's nauiuai, iiisioky 



mitted the whole of tho post-glacial coiUinciUal Mammals to 

 have reached HHtatn. And ho adds that if it can be sliow ! 

 that the coiUincnlal forms missing from our present fauna are 

 those most hkely to have been exterminated by the cold, or 

 least likely to cross the separating sea— and if, in addition, iUv) 

 arc species calculated to migrate as (piirkly as those whicli 

 are common to this country— then there will be a further argU' 

 ment against the second continental period. 



Without offering a dofmile opinion on a question so bristling 

 with difTicultles as the above, we may say that, so far as Mam- 

 mals are conrrrnrd, we do not think that anything decisive 

 one way or till- "Ml' 1 '.m I- .I, dn, ,,l iiom the considerations 

 referred to ii> ihc l.r.i Mill, 11. c. II ilic .iiKf.toi:; of our pre- 

 sent M.iinin.il. .Ihl :,iii\i\>- ilic wlh'K- (ll.hi.il luMJotl ill the 

 south ol I II l.iM.I, tiicre wi>nl«l ..i (,mii,(> \)c no (IKhculty in 

 regarding I Ucn» .is liMviiv-, n |.,.imi1,ii. ,i I'n.-I.iiul and Scotland 

 at Its close. The . i i . Iimu.\,i, m.M, diHicult with regard 

 to Ireland, which, on tliis hy[)otlu\sis, must at the same lime 

 have been separated from the sister island, since here, too, we 

 must have had an area in which ilu* present Irish Mannnals 

 Burvivinl the cold [UMin.l ^i, Iimu.x » i, i1)...e that now i*\ist 

 there then survived, wiiy <lul iu>i ,ii 1( .1 .1 .r. many persist thero 

 as In England, seeing that the Irish climate was prolMbly then, 

 as now, niilder than thai .>(" I'n I md ? It can hardly be urj;ed 

 that llu! area fieo of i* < m In Imd was too small lor all the 

 species, seeing that animals el ih* 1 • «-! ilie \\cd i^eerandtho 

 extinct Irish Deer are known to i»ave hved in Ireland within tht^ 

 rocci\t period, and must, consequently, on the hypotlu>sis uiuler 

 consideration, have been omong the survivors; it being evident 

 that an area of land sulliciently larg(» to have supported such 

 creatures would perfectly well have also maintained such existing 

 ICnglish Mannnals as are unrepresented in the Irish fauna. 



The great objection that Mr. lUilman seems to have to tho 

 allc^jed post glacial connection of Hritain with the Continent is 



