4058 Northern region weather stations. INTERNATIONAL AGREEMENTS OTHER THAN TREATIES [61 STAT. MEMORANDUM At the present time there are in the northern region of the Republic the eleven weather stations listed below: STATION8: Ensenada, B. C . Altar, Son. Ures, Son. Villa Ahumada, Chih. Tem6sachic, Chih. Hidalgo del Parral, Chib. Ojinaga, Chih. Sierra Mojada, Coah. Monclova, Coah. Linares, N. L . Soto la Marinaj Tamps. Observatory for Ag- ricultural Climatol- ogy. APPROX. POSITION Lat. Long. 31047' 116037' 30 43 111 44 29 26 110 24 30 38
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28058' 107050' 26 56 105 49 29 24 104 25 27 17 103 42 26 55 101 26 24 52 99 34 23 46 98 12 These stations are of the thermopluviometric category and despatch, daily, to the Central Bureau in Tacubaya, for short-term weather forecast studies, a telegram with the observation data gathered at 6:30 a. m . on the 90° meridian west of Greenwich, which include: maximum temperature and minimum temperature in the previous 24 hours; rainfall in the previous 24 hours; direction and estimated velocity of the wind and cloudiness, at the time of the observation, and prevailing aspect of the sky during the previous 24 hours. (These data are not included among those which are despatched daily to the United States, at present.) It is to be supposed that the new stations which the Government of the United States is proposing to establish would, in addition to their observations of temperature and rainfall make observations of the atmospheric pressure, wind and cloudiness; but it would perhaps be advisable to take into account the location of already existing pluviometric stations, in view of the necessity of the places selected being connected by telegraph with the Center and of the advantage of taking previous statistics as to temperature and rainfall into account. To the foregoing places may be added two which are connected by telegraph with the Capital and at which there also are thermo- pluviometric stations, but which do not at present transmit their daily data by telegraph. They are: Presa de la Angosture, Son .... Lat.: 30°17'; Long.: 109016' and Lampazos, N. L.... Lat.: 27°2'; Long.: 100°31'. The Government of Mexico has always been disposed to cooperate with that of the United States in meteorological studies. For three years the Federal Government has been actively improving the network of observatories, and a special one for Agricultural Climatology will be opened in the very near future at the National School of Agriculture, Dr. C . W. Thornthwaite, of the United States Depart- ment of Agriculture, who has distinguished himself by his desire to cooperate with us in that field, having been invited to the opening thereof.
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