Zerao's Memoir relative to the 



130 crusadoes in the port of QuilHmane,* and let us, instead 

 of valuing the miscellanies at 30,000, which is most probably 

 their value) suppose them to be worth 100,000 crusadoes. 



The gold, with the cambio, - - - 100,000 



Ivory, 525,000 



Slaves, - = 192,000 • 



Rice, 112,000 



Wheat, --- 61,420 



Miscellanies, ------- 100,000 



Sum Total, in crusadoes, 1,090,420 



Our commercial affairs in this part of Africa extend over 

 an immense territory, whose length from North to South is 

 about 350 leagues, from Cuzembe to Manica, and 200 leagues 

 from East to West, from Quillimane to Zumbo. But ^s the 

 merchants send their goods far beyond these places, we may 

 safely add 50 leagues to the above dimensions. The mercan- 

 tile transactions, therefore, of the Captaincy of the Rios de 

 Senna, extend over a space of 87,500 square leagues of sur- 

 face, all of which only produce to the 'alue of 1,090,420 

 cruzadoes in exports, and this too in provincial currency, 

 which, reduced to hard cash, would be 547,210 hard cruzadoes 

 (about 138,400 Spanish dollars). — In order to make an esti- 

 □ of what the produce in coffee, cotton, indigo tobacco, 

 &c of a single estate in this country might be, I will com- 

 pare it with the French island of Martinique, which is about 

 16 leagues long, and 8 broad, the common size of a crown 

 estate, though they are often much larger. Some French 

 economists have stated the exports of this island to Europe 

 in ] 769, when it was not in its greatest prosperity, in the 

 articles of sugai-, coffee, and indigo, as worth 5,500,000 cru- 

 zadoes in hard Portngueze coin. Now as this part of Africa 

 is much more fertile than the Antilles, and has moieover the 

 advantage of slaves, for one twentieth part of the price, there 

 paid for them, I think my position is fairly made out: that 

 one single estate, if properly cultivated, might export more 

 than ten times the value of what is now done by a territory 

 of 87,500 square leagues, that estate being 16 leagues long 

 by 8 broad. The who'e territory of the Captaincy of the 

 Rios de Senna might, by similar efforts, be brought to export 

 to the value of 151 millions of cruzadoes. even allowing a 

 1'i-oportion of waste and mountainous land. For this 

 reason 1 took Martinique as a standard of comparison, be. 

 it is more mountainous than our lands ; and in 1769, a great 

 part of it was uncultivated. 



' \W st» on< -nl.J ;it .Mozambique ibr SO crusadoes.— (Owes.) 



