One verse

Srimad Bhagavatam 5.1.32

5.1.32

जम्बूप्लक्षशाल्मलिकुशक्रौञ्चशाकपुष्करसंज्ञास्तेषां परिमाणं पूर्वस्मात्पूर्वस्मादुत्तर उत्तरो यथासंख्यं द्विगुणमानेन बहि: समन्तत उपक्‍ल‍ृप्ता: ॥ ३२ ॥

jambu-plaksa-salmali-kusa-kraunca-saka-puskara-samjnas tesam parimanam purvasmat purvasmad uttara uttaro yatha-sankhyam dvi-guna-manena bahih samantata upaklptah.

jambu
Jambu
plaksa
Plaksa
salmali
Salmali
kusa
Kusa
kraunca
Kraunca
saka
Saka
puskara
Puskara
samjnah
known as
tesam
of them
parimanam
measurement
purvasmat purvasmat
from the former
uttarah uttarah
the following
yatha
according to
sankhyam
number
dvi-guna
twice as much
manena
with a measure
bahih
outside
samantatah
all around
upaklptah
produced.

The names of the islands are Jambu, Plaksa, Salmali, Kusa, Kraunca, Saka and Puskara. Each island is twice as large as the one preceding it, and each is surrounded by a liquid substance, beyond which is the next island.