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EXHIBITION AT RIO DE JANEIRO. 



There has been received at this department, through the Department of State, 

 a communication from the counsellor Azambuja, minister of Brazil, relative to a 

 '' national exhibition of the husbandry and industrial products of the country," 

 at Rio de Janeiro, on the 19th of October of the present year. 



He states that the imperial government " thinks it advisable to connect 

 with this a special exhibition of machines and their furnishings, and instru- 

 ments, manufactured in foreign countries, intended for the cultivation, prepara- 

 tion, and improvement of agricultural productions." 



He leaves it with the Secretary of State to invite official attention to the sub- 

 ject, if he deems it proper. 



From the accompanying regulations and instructions of the managers of the 

 exhibition, it appears that machinery and implements from abroad will be 

 admitted, and must be inscribed " foreign," with the name of the manufacturer, 

 inventor, and cost of each. They may be exhibited and worked by the exhibit- 

 ors, but cannot compete for the premium. The necessary space and steam- 

 power will be furnished free, but no machinery requiring foundations or special 

 constructions will be admitted. Transportation will be paid by exhibitors. No 

 machinery can be removed without special permission. After the exhibition is 

 over, the goods may be sold, in which case they will be subject to a duty of 

 one and a half per cent, ad valorem, but if re-exported, they are free of duty. 

 Passes are furnished free to exhibitors. 



All persons wishing to participate in this exhibition " will give due notice of 

 such intentions to the Brazilian minister, (in New York,) with full particulars of 

 their machines." 



The empire of Brazil is a field which our manufacturers of agricultural imple- 

 ments cannot aiford to neglect to cultivate. It is to be hoped that they may 

 arrange to extend the fame of their goods, and thus add to their business and 

 their profits in this promising direction. 



RUSSIAN OFFICIAL EXPERIMENTS IN YACCIMTION FOR 



RINDERPEST 



The Department of Agriculture is in receipt of a report of experiments made 

 by a committee oppointed by the Russian secretary of the interior, at Bonda- 

 rewka and Salmysche, relative to the protection afforded to cattle by vaccina- 

 tion for rinderpest. It was communicated by the Russian minister, through the 

 Department of State. 



Experiments of a similar character were initiated, in accordance with the sug- 

 gestion of Professor Jessen of Dorpat, in 1852, with results so various and in- 

 definite that the government determined further and more thoroiighly to test the 

 virtues of vaccination. Accordingly an appropriation was made of ten thou- 

 sand roubles annually, for three years, and a committee appointed, on which was 

 Professors Jessen, Rawitch, and Roynoff, with instructions to continue experi- 

 ments in three established institutions for vaccination. This was in 1858, but 

 active operations did not commence till 1860, and then only at two points in 

 southern Russia — Salmysche and Bondarewka — under the immediate superin- 

 tendence of Veterinary Surgeon Kobuscheff at the former place, and of Surgeon 

 Sergeeff at the latter. These experiments continued through four seasons. 



