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EXPOSITION AT VIENNA.
“ I. There are numerous questions in experimental agriculture which can only be solved by an international system of observation, or whose solution can be made by such a system in the best manner and that most compatible with the interests of agriculture. As such questions for united investigation are to be recommended :—
“ 1. Anal} T sis of atmospheric deposits, to ascertain their proportion of ammonia and nitric acid, in which connection the meteorological and local conditions and time of making the experiment are to be observed as far as practicable. (Solution of the nitrogen question.)
“ 2. Determination of the power of absorption possessed by cultivated soils, with regard paid to their chemical and physical nature (mechanical and chemical analysis of soils), as well as the influence of manure upon absorption.
“ 3. Attempts to settle the question of agricultural hydrotechnics (laying out of hydrotechnical gardens for study).
“ 4. Analysis of the agriculturally'important seed and grain of different countries and localities, for the purpose of determining their nutritious and commercial value.
“ 5. Settling the influence which food and race exert upon the quantity and constituents of milk produced, as well as on the fattening of stock.
“ 6. Estimate of the faeces, seed, and eggs of the silk-worm.
“ 7. Attempts to produce different varieties of plants from the same seeds under different conditions of cultivation (acclimatization).
“ II. For the purpose of investigating these matters, the governments are to be requested to complete the number of agricultural experimenting stations and to supply them with the necessary material.
“ III. The chiefs of the agricultural experimenting stations, assisted by the delegates of the respective governments, are to meet in periodical international assemblage in order to deliberate together upon the investigations to be conducted in common, the appropriate methods of research and the united publication of data.
“ IV. The request is to be addressed to the Imperial and Roy'al Austrian Agricultural Ministry', that it will be pleased to undertake the steps which seem to it proper in order to effect the execution of the proposals under I. and II.”
The representative of France, M. Boitel, at the close of the session offered a proposition, "that an international congress of cultivators of land and forest be called together at London,