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year the groups of seals only occupy specified places 

 along the shore. It has been noticed, that bulls prefer 

 to reside on the same Island, but the place they occupy 

 from year to year vary. On Behring and Copper 

 Islands fur seals appear almost simultaneously, but the 

 arrival in large numbers occurs later on Behring Isl. the 

 arrival on the southern rookery of Behring Isl. is also 

 nearly always one month later, than on the northern 

 rookery of the same Island. 



The reason of this is an entirely plrysical one; as a 

 thick layer of snow is noticeable on a photograph taken 

 at sud. rookery in July month. 



The places, chosen by fur seals as rookeries on the 

 shore are varied; either they are shallow, stony or sandy, 

 as it is frequently the case on the northern rookery of 

 Behring Isl. or a steep stony, narrow shore, as are 

 most of the rookeries on Copper Isl., but in all cases, 

 they must be protected from the splash of waves; — the 

 latter depends either on a long distance of shallow-water 

 or on the existence of a barrier far from the shore, which 

 serves as a break- water. The latter is the most favourable 

 one, because between the shore and the barrier there is 

 a considerable space of water, where the newly-born lie 

 safety in the water and learn to swim and when wishing 

 to rest they climb onto large stones. On the photographs 

 of the Palata (Panorama) rookery, taken when the waves 

 were calm, one can see, that there is no harem, where 

 the wave dashes direct on to the shore and that the 

 harem is assembled on the shore, protected by a row 

 of stones placed along the shore. The photograph of the 

 northern rookery and of its different parties, gives a 

 good idea of the locality. The northern rookery compo- 

 sing shistous conglomerate layers destroyed by the ac- 

 tion of water (snow) and wind. Conglomerate layers, 

 consolidate with a coloured cement. On places, where the 

 seals dwell the conglomerate is smooth, on the borders 

 it rises above the water forming separate rocks, which 



