660 SEC. 15. GEOGRAPHY. 



(25.) S. G. O. engravings of Indian atlas. 

 (26.) Himalayan sheets of Indian atlas. 



(27.) Kumaon and Gurwhal, on 37 sheets, a selection mounted 

 together. 



(28.) Kattywar survey, a selection mounted together. 

 (29.) Guzerat survey, the three published sheets. 

 (30.) Colonel Walker's map of Turkistau, four, sheets, mounted 

 together. 



(31.) Colonel Montgomerie's Trans-frontier maps. 

 (32.) Sholapore Collectorate, in a cover. 



(33.) Laughton's Bombay, 172 sheets, a selection mounted 

 together. 



(34.) Ditto, reduced scale. 



(35.) Native explorer's maps of 



Arun River. 



Tengri Nor. 



Western Nepal. 



Rudok. 



Sanpu River. 



(36.) The Mesopotamian surveys. 

 (37.) St. John's Persia, six sheets. Beluchistan. 

 (38.) Prinseps. Atlas of Sealkote district, 

 (39.) Progress report maps. 

 (40.) Greenough's geological map of India. 

 (41.) Geological atlas of India, 



3153a. Selection of Maps and Publications to illustrate 

 the progress of Cartography and Surveys in Spain. 



Istituto Geogrqfico y Estatistico de Espana. 



(1.) Red Geodesica de Primer Orden en 1874. 

 The actual state of geodesic studies in Spain is represented on a scale of 

 ?(Too T oooo- ^ ne thick black lines mark the triangles in the French and Por- 

 tuguese net, which is joined to the Spanish ; thinner black lines mark the 

 direction of the Spanish system ; the black lines of the plan point out the 

 quadrilateral directions or capitals of provinces. The localities of which the 

 latitudes are determined astronomically are marked with a blue semicircle ; 

 the localities in which the difference of longitudes is determined are marked 

 with a red semicircle ; the azimuths known are marked with a blue circum- 

 ference. The lines of levelling are traced with red ink, with a continued line 

 those already observed, and by dots those not yet carried out. The localities 

 in which marcographs have been established are marked with a red cross. 



(2.) Publications relating to the International Commission on 

 the Metre. 



The determination of the metre and international kilogramme is one of the 

 most interesting problems of measurement. 



The International Commission assembled to determine this was formed of 

 members of all nations. 



