The warmed air of summer produces an area of low pressure in the west-central United States, which interrupts the belt of high pressure that planetary conditions alone would form around the earth about latitude 30; hence there is a tendency of the summer winds to blow inward from the northern Pacific over the Cordilleras toward the continental centre, and from the trades of the torrid Atlantic up the Mississippi Valley; conversely in winter time, the cold air over the lands produces a large area of high pressure from which the winds tend to flow outward; thus repelling the westerly winds of the northern Pacific and greatly intensifying the outflow southward to the Gulf of Mexico and eastward to the Atlantic. As a result of these seasonal alternations of temperature and pressure there is something of a monsoon tendency developed in the winds of the Mississippi Valley, southerly infiowing winds prevailing in summer and northerly outfiowing winds in winter; but the general tendency to inflow and outflow is greatly modified by the relief of the lands, to which we next turn.
The School of Mechanic Arts and Trades (Escuela de Artes y Oficios) of Santiago has a high reputation for the practical character of its instruction, in which it is admirably seconded bya normal handicraft school (Sloyd system) and a night school of industrial drawing in the same city, and professional schools for girls in Santiago and Valparaiso, where the pupils are taught millinery, dress-making, knitting, embroidery and fancy needlework.
The public school system of Manila includes, besides the common schools and Manila high school, the American school, the Philippine normal school (1901), the Philippine school of arts and trades (1901), the Philippine medical school (1907) and the Philippine school of commerce (1908).
There are several industrial schools where agriculture, horticulture, carpentry, printing and other trades are taught.
Again, the classification of an economic bibliography at once shows how varied has been the character of economic investigation, ranging from the most abstract speculation on the one hand to almost technical studies of particular trades on the other.
Rabat trades with Fez and the interior of Morocco, with the neighbouring coast towns and Gibraltar, and with Marseilles, Manchester and London, and is the greatest industrial centre in Morocco.
An electoral assembly is formed for the purpose consisting 1 of the twelve members of the Holy Synod, the eight lay members of the National Mixed Council, twentyeight representatives of as many dioceses (the remaining dioceses having only the right to nominate a candidate by letter), ten representatives of the parishes of Constantinople, ten representatives of all persons who possess political rank, ten representatives of the Christian trades of Constantinople, the two representatives of the secretariat.
But it would be absurd to suppose that we could reach those conclusions by simple reference to the trades themselves.
It was true that the particular system of cultivation practised in Demerara was more trying than some others; but then it might be said that no two trades were equally conducive to health.
But, excluded though they were from most trades and occupations, confined to special quarters of the city, disabled from sharing most of the amenities of life, the Jews nevertheless were gradually making their escape from the ghetto and from the moral degeneration which it had caused.