102 SEAL LIFE ON THE PRIBILOF ISLANDS. 
The area of the several rookeries on St. Paul in July of the present 
year, as indicated on the maps made by Mr. C. H. Townsend, is shown 
below. I have divided the total area in the case of each rookery into 
two parts, on one of which the seals are distributed about as on the 
parts counted as regards density, and on the other are massed together. 
The areas are as follows: 

Not massed.| Massed. 

Square feet. | Square feet. 
LOI op Yarn, Web nig) (ASH Sos Sasa apace odarioomooooodSpecHsacbesbancudccdoqacteTd 168, 7: 51, 854 



COni@e AAI) S556 hosoodepEpSen Sor qos conn ososecnaoocncanscoScseaccodasose 131, 725 4, 600 
IMO] STO etee es eee oe ceeiscis a cice 160, 580 80, 220 
PiAeOON) <6 5. sascceas-se ees ee" S20 2410 eee 
MVOC Legs ane mistetn tale oloce mains rate etnies 330, 523 | 115, 188 
Ketavie and Lukannon 226;/303*|\2e ease 
Little Polavina 29; 969) | Soc cletee aie 
IBN? TED AnEE) Seen dows BARR Been onaeceE ceca sou conoadeposHUddorcensesoosdar 64, 748 | 16, 239 
Northeast Point 378, 240 361, 443 

Employing again Mr. Townsend’s maps, I find that the 1,264 cows 
counted on the Lagoon rookery covered an area of 82,241 square feet, 
making the average occupied by each cow 65 square feet. The 4,110 
cows counted on Ketavie and Lukannon rookeries covered 189,712 square 
feet, or 46 square feet for each cow. 
On Tolstoi 1,520 cows occupied 44,699 square feet, or 29 square feet 
for each. 
The average is as follows: 
ran} 
Square feet. 
Lagoon rookery..----- wal etoiae sigisis ses edwciee dees ole ein ejaielel ta etancei ola ee eee 65 
Ketavie and: Gukannon Tookeriess-. 5% < sc. stieei= eels Seles seen Beene eee 46 
Tolstolgsee ove Be tS Soke See lercta cn obs ae Se SA Eee Mee oe bee Gee Ont eee 29 
PAV OT AIDC foie aie. rc is, o.6.0 Sierarone ais tocetssay nyo tals ofageievs/a) ie sid iate Neeore > clone: Shc Vos eee ee 46 
If we divide the number representing the total area of the rookeries 
on St. Paul by 46 we should find thereby the number of cows. It 
happens, however, as already stated, that on certain portions of the 
rookeries the seals are massed together, and for these areas it has been 
decided to consider the average density as double that of the remaining 
parts, which would give us 23 square feet as the average area occupied 
by each cow. 
The cows on the whole area of the Lagoon rookery having been 
counted, the number obtained by this enumeration will be included 
instead of an estimate, and the same course will be taken with Lukan- 
non and Ketavie rookeries. 
The result is as follows: 
Cows 
WATOOMIMOGOKOTY esse Hee okee Seats cede sien see els «eee ae 1, 264 
Ketavierandubukannonerookenles cares ce see cen cae see en eee ee eae 5, 312 
Tolstoi, Reef, Little Polavina, Big Polavina, Northeast Point, Upper Zapadnie, 
and dower Zapadnilemookeriesie. = seee oe cee eee ee daa. Lee eee eee 54, 860 

