114 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. 7 



to be delivered by the government inspector, certifying that said plant comes from 

 a nursery subject to his control and free from dangerous cryptogamic or ento- 

 mological disease. 



(3) In case one or more states disagree as to whether a given disease should be 

 described as dangerous, or when there is grave reason to suspect the presence of 

 new and dangerous disease liable to be spread by plants not intended for repro- 

 duction, the governments concerned should convene a commission of specialists of 

 their respective countries to study and propose the most practical mode of pre- 

 venting the spread of the disease with the smallest possible loss to the trade of the 

 countries concerned. 



(4) The assembly considers that an international agreement is indispensable for 

 the protection of agriculture against plant diseases. Such an agreement should be 

 based on the principles outlined in paragraphs 1 to 3 of these resolutions and 

 should set forth: (a) The measures and methods of inspection and control; (b) 

 a list of diseases recognized as dangerous; (c) what products should be subject 

 to control; (d) the blanks and form of certificate; (e) the mode of arbitration to 

 be resorted to in disputed cases. 



(5) The assembly considers that the convening of an international commission 

 of specialists, as proposed by the French Government, would greatly facilitate by 

 its preparatory labors the conclusion of an agreement by plenipotentiaries. 



The assembly expresses the wish that said commission convene as soon as pos- 

 sible, and that this may be followed at once by the conclusion of an agreement. 



(6) The assembly is of the opinion that whenever the General Assembly of the 

 International Institute of Agriculture convenes, government specialists on plant 

 pathology should meet in a special comm.ission to (a) come to an understanding 

 on common studies bearing on plant diseases; (b) to keep in touch with the 

 results obtained by the enforcement of the international agreement, to communi- 

 cate these results to one another, and to suggest, if need be, amendments to be 

 introduced therein. 



Professor Ritzenia-Bos^ presented the following propositions: 



1. That iu each country there be established a well-organized phytopathological 

 service through one or more vegetable pathological laboratories, which, by employ- 

 ing special scientists, would be capable of cooperating in international problems. 



2. That in each country a sum be set aside annually to defray the expenses of 

 one or more delegates to an international congress of vegetable pathology to be 

 held alternately in the different countries. 



3. That the different countries contribute to an international periodical on vege- 

 table pathology, edited by the division of phytopathology of the International 

 Institute of Eome, giving a review of all the important publications on this subject 

 which have appeared in the different countries, also information, furnished by the 

 different countries, on the appearance of important injurious plant and animal 

 diseases. 



4. That ill the different countries everything possible be done to disseminate 

 among farmers and horticulturists information on the most imjjortant injurious 

 plant and animal diseases and means of preventing and combatting them. 



Professor Comes thinks it will be difficult to establish international 

 measures which will answer the requirements without seriously hin- 



1 Actes de la quatrieme assemblee generale, Institut International D 'Agriculture, 

 Rome, 6-12 Mai. 1913. 



