418 METEOKOLOGT. 



considered it important to subject them to a winter's test at the Pro- 

 vincial Magnetical Observatory, Toronto, before sending them out, 

 and to compare and note any variations which might be caused by 

 exposure to extreme cold. 



The various instruments and books which are now ready for distri- 

 bution are as follows : 



One barometer, either standard or one of a second quality. 



A self-registering maximum thermometer. 



A self-registering minimum thermometer. 



A wet and dry bulb thermometer. 



A rain-gauge and graduated measuring glass. 



A copy of the Official Instructions and Directions for making and 

 recording Observations. 



Daily register book, containing printed forms, and adapted for the 

 observations of one complete year. 



Monthly and annual abstract book_, containing printed forms, and 

 adapted for the observations of one complete year. 



Blank book for extraordinary records. 



Map of the Stars, four tables, and synopsis, reprinted from the 

 Instructions and mounted for convenient reference. 



A copy of Drew's Practical Meteorology. 



A copy of Coffin's [Smithsonian] Hygrometrical Tables, bound up 

 with the Instructions. 



(A wind-vane is not sent. It can easily be constructed at the 

 station.) 



The cost of these instruments and books, including packing, &c. , 

 will be $140, one-half of which will be borne by this department and 

 the other half by the county to which the instruments are sent. 

 "Where desirable, an officer will be despatched from the department 

 with the instruments to insure safety in their carriage and to assist 

 in fitting them up at the proposed station. Should you desire the 

 instruments to be sent to your grammar school, I will thank you to 

 notify me at your earliest convenience, so that the necessary arrange- 

 ments lor that purpose may be made, and transmit the required 

 amount ($70) with the enclosed form duly filled up. Where, instead 

 of the standard barometer, a barometer of the second quality is 

 selected, the price of the set of instruments, &c,, is $110, only one- 

 half of which ($55) need be sent. 



The instructions for taking and recording observations, which have 

 been approved by the Council of Public Instruction, have been care- 

 fully prepared by the director of the Provincial Observatory, and 

 are sufficiently minute and explicit to enable the head master of tbe 

 grammar school to make the necessary observations without much 

 trouble. Attention and patience will be indispensable at first, but 

 time and practice will soon insure regularity and accuracy in the 

 observer. 



In order to afford time for practice, it is suggested that no observa- 

 tions be recorded in the books sent until the 1st of January next. A 

 sufficient supply of unbound sheets will accompany each set of instru- 

 ments to enable the head master to record his observations on them 

 until that time. A form of monthly returns will also be sent by 

 mail, in which can be recorded each month's observations. These 



