Bīrūnī, Muḥammad ibn Aḥmad, Alberuni's India (v. 1)

(London :  Kegan Paul, Trench, Trübner & Co.,  1910.)



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and the



234                        ALBERUNPS INDIA.

size of all seven earths represented as collars is 127.
If the sea surrounding the middle earth is counted as
one, the size of all seven seas represented as collars is
127. The total size of both earths and seas is 254.
The size of The commeutator of the book of Patanjali has adopted
andse'is, ^ as the sizc of the middle earth 100,000 yojana. Accord-
the°com-^ " inglj) f^c sizc of all the earths would be 12,700,000
Patafija°ii ° yojctna. Further he adopts as the size of the sea which
surrounds the middle earth 200,000 yojana. Accord¬
ingly, the size of all the seas would be 25,400,000
yojanct, and the total size of all the earths and seas
38,100,000 yojana. However, the author himself has
not made these additions. Therefore we cannot com¬
pare his numbers with ours. But the Vdyu-Burdna
says that the diameter of the totality of earths and seas
is 37,900,000 yojana, a number which does not agree
with the above-mentioned sum of 38,100,000 yojana.
It cannot be accounted for, unless we suppose that the
number of earths is only six, and that the progression
begins with the number 4 instead of 2. Such a num¬
ber of seas (i.e. 6) may possibly be explained in this
way, that the seventh one has been dropped, because
the author only wanted to find the size of the contin¬
ents, which induced him to leave the last surroundingf
sea out of the calculation. But if he once mentions
the continents he must also mention all the seas which
surround them. Why he has commenced the pro¬
gression with 4 instead of 2, I cannot account for by
any of the principles of the calculation as they have
been laid down.

Each dvipa and sea has a separate name. As far as
we know them, we place them before the reader in the
following table, and hope that the reader will excuse us
for so doing".
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