360 ANNUAL REPORT OF THE Off. D'oc. 



ous. Experiments Lave shown that it is even more effective as 

 an insecticide than bisulphide of carbon. Carbon Tetrachloride is 

 prepared by treating carbon bisulphide with chlorine. Chlorine is 

 made very cheaply and carbon bisulphide is most ingeniously and 

 economically made by a continuous process recently devised by 

 whicW carbon and sulphur, the elements of which carbon bisulphide 

 is composed, are fed into the top of a stack at the bottom of which 

 is an electric furnace, heated to the required temperature to cause 

 the union of the two elements. The two chemicals out of which 

 carbon tetrachloride is made are, therefore, cheap which will put 

 the substance within the reach of all who may need it. 



THE CONSERVATION OF OUR NATURAL RESOURCES. 



By DR. ISAAC A. HARVEY, GeologUt. 



in view of the peculiar business tendencies and the potency of 

 commertialisiu today, is it not the serious and imperative duty of 

 our Commonwealth, and of other states, to ascertain, as accurately 

 as may be, the range and possibilities of our natural resources and 

 then husband and utilize them for the common good and to the best 

 advantage? The conservation of these important factors of our 

 civilization, is my subject, and, incidentally, the rural members of 

 our assembly should accord to the city members, the framing of 

 such laws as relate to municipalities, and, conversely, the city mem- 

 bers should concede to the rural members the discretion to formu- 

 late the laws or statutes that apply to only the country districts. 



Would it nut be wise to amend the statute or section thereof, 

 relating to trout fishing, so as to restrict the number and not pre- 

 scribe the length of the fish that may be caught, and thus avert the 

 destruction of myriads of trout that are hooked and thrown back 

 to die; as, likewise, to amend the section on deer hunting, so that 

 the same number may be killed in a given season, as the law now 

 allows; but no distinction be made as to the bucks and does, and 

 so forefend the killing of does through wantonness or carelessness, 

 as was so prevalent last season and theretofore. I say this by re- 

 quest, and such seems to be the consensus of opinion of fishers and 

 hunters with whom 1 have talked on the subject, while the general 

 trend of sentiment is quite similar and the feeling prevailing that 

 the sections referred to would be more honored in the breach than 

 in the observance. 



I referred last year to the diverse soils and their undermined 

 utility, expressing the view that this differentiation of soils invites 

 investigation to ascertain the several uses of the same; that is, by 

 analyses and experiment, under the direction of the State or Na- 

 tional Government, and the benefits already derived from the work 

 of the U. S. Department of Agriculture are assurance that further 

 efforts would be of vast advantage, as reduced to systematic investi- 

 tion; thereby indicating the specific uses and cultural qualities of 

 the soils as the same are determined by scientific processes, and the 



