938 Notice of the Rekhd Ganita, [Nov. 



9 . r Noon at Dhargadh stream, 26.69 74 74 



17 P. M. Kandhu, 25.28 66 64 



26 7 A. M. At the Jhdla over the Tonse, 27.023 60 60 



27 10 a. m. Eari on the Pabbar, 26.17 772 77 



28 10 A. m. Temple at Hath, 25.35 84 77 



29 10 A. M. Rum, 24.97 75 72 



30 10 A. M. S^rgaon, 24.22 80 76 



31 4 P. m. Peka, 22.15 59 53 



June 1 8 A. M. J?nglig, 21.568 64 53 



2 3 P. M. Liti, 19.62 52 50 



3 9| A. M. Crest of the Buran Ghat or 



Burenda Pass, 17.21156 43 



Baro. Th.att. det. Feet. 



3265 



4611 



J 2850 



* I 3754 



f 4595 



: 4948 



5713 



7720 



8221 



10229 



12650 



II. — Discovery of the Rekhd Ganita, a translation of the Elements of 

 Euclid into Sanskrit by Samrat Jagannatha, under the orders of 

 Raja Siwai Jaya Sinha of Jaipur. By Lancelot Wilkinson, 

 Esq. C. S. Resident at Bhopdl§. 



I lately had the good fortune to procure a copy of the Rekhd Ganita 

 or Sanskrit version of Euclid's Elements, which was made by the order 

 of Sewai Jaya Singh raja of Jaipur. This chief, the flower of the 

 Hindu princes of Hindustan, ascended the gaddi of Jaipur in A. D. 

 1699, and died after a reign of 44 years in A. D. 1743. He was dis- 

 tinguished by an ardent passion for the study of mathematics and es- 

 pecially of astronomy, and he did more to promote the cultivation of 

 sound science in this benighted land than any other Hindu prince on 

 record. Some details of his astronomical labours have been publish- 

 ed to the European world by the late ingenious Dr. Hunter in his 



to a barometrical degree or inch, but as other modes of calculation adopted by 

 Graham give more, I have assumed 1000 feet as a fair standard. With this liberal 

 allowance however the Burenda Pass instead of being upwards of 15,000 feet appears 

 to be only 12,650. 



* The spot where the observation was taken being about 20 feet above the water 

 and distance between the Jhula and Eari, about 12 inches, 3754 — 2830 = 924 -£- 

 12 = 77 feet per mile. 



f Hath being 50 feet above water and distance from Eari 14 miles, 4545 — 3754 

 = 791 -£• 14 = 57$ per mile. 



X Ruru ditto anddist. from Hath 8 miles, 4898 — 4545 = 353 -f- 8 == 44 per mile. 



N. B. Observed at Eari in the evening that the water in Pabbar had fallen about 

 2§ inches since day break. Hove the log in shape of a tent peg, but the rapidity of 

 stream did not prove more than 3 miles per hour, at Sheryaon, Pika, Janglig, Liti. 

 Rain every day about 4 o'clock. Snowy mountains clear in the morning but 

 invariably clouded at noon. 



§ We insert this notice with pleasure because it may excite attention to the work ; 

 but the Rekha Ganita is not unknown here.— A copy exists in the Sanskrit College, 

 which with a Sanskrit commentary was at Prof. Wilson's suggestion to have beea 

 printed ; but the suspension order put it on the shelf !— Ed. 



