FROM TONKIN TO INDIA 



Numerical 

 Order. 



Name and Position of Place of 

 Observation . 



10 

 1 1 

 12 

 '3 



14 



14 bis. 



'5 

 16 



17 



18 



19 



Ta-Min-Mi, Red River 

 (Yiinnan) 



Mai-Cheu (Yi.innan) 



ha, above the Red River 

 (right bank) (Yunnan), 

 camping ground on mound 

 to \\ . of town 



Souto (Yunnan) 



Sou- Tchou-Sai ( Yiinnan) 

 Sama (Yiinnan) 



Point on the Black River 

 (Ly-sien-kiang), at inter- 

 section of route from Isa 

 to Muong-Le 



Muong-Le (Yunnan), centre 

 of town 



Muong-Le (Yiinnan), centre 

 of town 



Ta-Koue-Lin (Yiinnan) 



Im-Pou-Tsin (\'iinnan) 



Ssuinao or Setnao (Yiinnan), 

 court of the inn Ou-shing- 

 hao 



Kotchiento (Yiinnan), to E. 

 of Ta-lotsin chain 



Tian-Pi, point where the 

 Mekong is intersected by 

 the route from Semao to 

 Dayakeu (Yiinnan) 



iVampe, point where the 

 Mekong is intersected by 

 the route from Chuen-lo 

 to Mong-pan (Yiinnan) 



Alang-Kai (\'unnan) 



Latitude 



23 II 



23° is; 30" 

 23° 22' 



23 19 30 



23° 9' 30" 

 22° 57' 

 22° 49' 



22° 35' 20" 



22 35 



Mean adopted 

 for Muong-Le: 

 22° 35' 10" 



22° it; 30" 



22° 37' 45" 



22° 46' 07 

 22° 46' 47" 



22° 45' 5°" 



Mean adopted 



for Semao : 

 22° 46' 30" 

 22° 39' 25" 



22" 37 



23 °o 45 



23 13 41 

 23° 13' 17" 

 Mean adopted 



23° '3' 30" 

 ^62 



Method Employed. 



By deduction from the lati- 

 tude of Tamatolo. See 

 note. 



Meridian altitude (Sextant). 



Pole Star (Theodolite). 

 Direct measurement by 

 Sirius. 



By deduction from the lati- 

 tude of Isa. 



Circummeridian altitudes of 

 sun (Theodolite). 



Circummeridian altitudes of 

 sun (Theodolite). 



Circummeridian altitudes of 

 sun (Theodolite). 



Circummeridian altitudes of 



sun (Theodolite). 28th 



March. 

 Circummeridian altitudes of 



sun (Theodolite). 29th 



March. 



Circummeridian altitudes of 

 sun (Theodolite). 



Circummeridian altitudes of 

 sun (Theodolite). 



6 Circummeridian altitudes 

 of sun taken 2 by 2 (Theo- 

 dolite). 



Pole Star (Theodolite). 



Direct measurement by 



Sirius. 

 Circummeridian altitudes of 



sun (Theodolite). 



Circummeridian altitudes of 

 sun (Theodolite). 



Two groups of Pole Star 

 altitudes (Theodolite). 

 Direct measurement by 

 Venus. 



