what is a jalabIna?

[Peter Friedlander]

Dear listmembers
In a passage about observing the moon in a Hindi text I am working on there
is a mention of a dUrbIna (telescope) and another device called a *jalabIna*
(a 'waterscope'?)
I can find no reference to a jalabIna so far. Has anyone else ever seen this
word, or even better a *jalabIna* itself!
Dr Peter G. Friedlander
Hindi Distance Learning Project
School of Asian Studies
La Trobe University
Bundoora 3081
Victoria
Australia
email: astpgf at luga.latrobe.edu.au