410 MONTREAL NATURAL HISTORY SOCIETY. 



The Anemoscope is self-registering, and shews the direction of the wind; while 

 the Anemometer recordi constantly its velocity in miles. The latter instrument is 

 simple and novel in construction, and furnishes results which coincide with those 

 in use at Toronto, Liverpool, and other places. Attached to it is a self-registering 

 Rain-guage, which shews the commencement and the termination of each fall of 

 raia and the amount in tenths of an inch. 



The Snow-guarje presents a surface of two hundred square inches, while there is 

 an Evaporator, with a surface of fifty inches. 



Among other instruments may be mentioned those: — 1. For ascertaining the 

 amount of dew ; 2. For measuring the amount of water in a given quantity of 

 snow ; and 3. For the measurement of the degree of evaporation from the surface 

 of ice. 



The quantity of Ozone is registered by the methods adopted by Schombien and 

 Moffat. 



Without the building, is the apparatus for the investigation of atmospheric elec- 

 tricity, consisting of a long pole, 70 feet high, furnished with a slide or groove, 

 by means of which is hoisted an apparatus to which is attached a collecting lan- 

 tern. This is supplied with two lamps which are kept constantly burning in 

 order to secure insulation. The electricity thus collected is conveyed by copper 

 wires to a conductor within the observatory, where it is connected with a viriety 

 of electrometres and other contrivances by which is precisely ascertained the 

 intensity and kind. 



Investigations are also made on the formation and varied shapes of snow- crys- 

 tals, of which copies were exhibited as obtained by the Chromotype process, which 

 is intended to be likewise applied to the self-registration of the Barometer and 

 Thermometer. 



The fixed hours of observation daily are, 6 and 7, A. M., and 2, 9 and 10, 

 P. M. Extra hours are often requisite, and indeed hourly and minute observa- 

 tions are sometimes necessary. 



It may be also mentioned that Dr. Smallwood invariably records observations 

 upon storms, the aurora borealis, meteors, and other phenomena, while notice is 

 taken regularly of the periodic appearance of animals, birds, <$£C, as well as the 

 time of the leafing and flowering of plants. 



Such then is but a short description of the apparatus by means of which Dr. 

 Smallwood has for many years sedulously carried out his valuable Meteorological 

 observations. The whole has been constructed at hS owu expense ; and while 

 many of the instruments bespeak their own cost, there are not a few contrived 

 by himself, which exhibit a vast amount of ingenuity, combined with simplicity 

 and economy. Not to speak of the outlay necessary to complete such a series of 

 apparatus for standard observations, the greatest credit is due to Dr. Smallwood 

 for the indefatigable manner in which he has laboured for years in the cause of 

 Meteorological Science — unassisted by Government patronage, and unrecognised, 

 even to the present day, by any Scientific Society or Institution. His observa- 

 tions extend so far back as the year 1841. Year by year he has varied and ex- 

 tended his investigations by means of gradual additions and new contrivances, 

 until at the present time, in spite of all difficulties and the shameful short-coming, 

 on the part of those Authorities, Societies and Institutions, which should have ex- 

 tended to him the right hand of support and recognition, it may be asserted, we 

 believe, without contradiction, that he possesses the simplest and most ingenious 



