APPENDIX. 



385 



ordered Mr. May to assist him in this cruise, and Mr. Eld, of your 

 ship, to assist in the duties on board the Sea-Gull. 



After you have obtained the necessary information in legard to 

 this shoal, (should you be so fortunate as to find it,) you will return to 

 Cape Frio, and from thence measure the distance from this harbour by 

 sound. 



The most efficient mode of doing this, I conceive as follows, viz. 

 After getting the light in sight, anchor the three vessels so as to form 

 a triangle, and take their azimuthal bearings from the sun, measuring 

 by sound the distance between the vessels, which will give you the 

 bases of the triangle; then measure the angles from on board the 

 vessels, with the light-house, and this will give you data to calculate 

 its distance and bearing ; thence proceed west, keeping the vessels in 

 range, and as soon as you get their distance and bearing, change their 

 positions alternately. 



Very respectfully, 



Charles Wilkes, 



Commanding Exploring Expedition. 

 Captain William L. Hudson, 



Commanding U. S. Ship Peacock. 



XXI. 



POPULATION OF BRAZIL, 

 Estimated by the numbers of houses furnished by the returns of Elections for Deputies in 

 1833, to the National Legislature, calculating each habitation as containing five free 

 people, and the slaves as being two-fifths of the whole population. 



PROVINCES. 



PARA 



MAR ANITA O - 



PIANHY 



CEARA - 



RIO GRANDE DEL NORTE - 



PARAHIBA * 



PERXAMBUCO - 



ALAGOAS - 



SERGISSE .... 



BAHIA - 



CUIABA 



goyas, slaves, (17,375) - 

 minas geraes, (24,600) - 

 espirito santo ... 

 rio de janeiro, (117,600) 

 st paulo, (94,166) - 

 st. Catherine's ... 

 rio g&ande do sol, (20,500) - 



NO. OF HOUSES. 



INHABITANTS. 



24,500 



102,500 



30,600 



153,000 



11,300 



56,500 



35,900 



179,500 



12,400 



62,000 



24,700 



123,500 



59,900 



299,500 



33,300 



166,500 



20,700 



103,500 



87,600 



438,000 



5,600 



28,000 



13,900 



69,500 



120,800 



604,000 



7,700 



38,500 



58,800 



294,000 



56,100 



282,500 



9,800 



47,000 



16,400 



82,000 



