Apr 30, 2010, 8:38:25 AM4/30/10
to Satish Chile, tanay bose, Parjanya guru, shobha chavda, indiantreepix
Both Abrus precatorius and Adenanthera pavonina, (as well as Mash bean (Black gram, Phaseolus mungo), and rice have been used in traditional weighing system. This is what we learnt since childhood
8 chaval (rice) = 1 rati
8 rati =1 masha
12 masha =1 tola
Both Ratti as well as Adenanther pavonina (thus also called carat bean) have long been used in weighing gold and ornaments, as also for making rosaries.
Incidently word gram also seems to be derived from black gram which weighs slightly less than 1 gm. Here are exact relationships.
1 carat bean= 4 grains= 0.259 gm
1 tola = 11.6638125 gm
1 masha = 0.971984375 gm
1 Rati = 0.121998046875 gm
1 rice = 0.0151872559 gm
thus one carat bean seed would be roughly equal to two seeds of rati
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297 Mob: 9810359089