REVISED CENSUS OF 189r.. 



'.15 



referred to. Tnsteail of tlie average correetiou of l.'> per cent, one of 100 per cent 

 would liave been more nearly correct. However, since in the original census of 18'J(j 

 and in the census of 1S97 Kitovi rookery has been taken as typical of the rookeries as 

 a whole, we may use its percentage of correction, 91. in the revision. After making 

 this correction and such alterations in the estimates of harems as exiierience shows to 

 be advisable, we have the following revised and completed census for the season of 

 1896: 



Revised census, 1896. 



ST. PAUL. 



Kitovi 



I..t£Oon 



Poiovina (clitTs) 



Z.ipadni Keef 



LukaniQ 



Tolstoi' 



Zapadui^ 



Little Zapadui- . 



Goritatch 



Ardigaen , 



Eeef 



SivTitcIH 



Poiovina^ 



Little Poiovina.. 



Vostoclini 



iloriovi 



Total. 



4.335 



ST. GEORGE. 



North' 



Little East — 



East 



Zapailni^ 



Staraya Artel - 



Total... 



St. Paul.... 

 St. George . 



Grand total. 



RECAPITULATION. 



* A rwluction of 30 harems from the ori^nal estimate. 

 ^ A reduction of 40 harems. 



3 The origiual count of 650 pups used in the eensns^of 1896 was niatle from the cliffs above the rookery under 

 circiunstauces wliicli make it certain that it is an underestimate It is therefore discarded. 

 ^ Am increase of 42 harems. 

 ® An increa.se of 15 harems. 



* A decrease of 25 harems. 

 'A decrease of 39 harems. 



THE VALUE OF THIS CENSUS. 



This elaborated and corrected census of 1896 gives our best i^ossible judgment as 

 to tlie conditions on the rookeries of St. Paul and St. George during the season of 

 1S9(>. The revision and alteration which have been found necessary make the estimate 

 more or less unsatisfactory. But no other result could be expected. The census was 

 a growth and an experiment from the start. The conditions under which it ought to 

 have been made were not understood uutil the time was passed. Notwithstanding 



