106 JOURNAL OP ECONOMIC ENTOMOLOGY [Vol. 3 



which $1,090.05 was for printing. There are bills payable of $353.10, 

 $268.40 for No. 6 of Vol. II, making the total expense for the year 

 $1,584.03. The publication of the Journal would be very difficult 

 were it not for the generous support of our advertisers. From the 

 tone of letters from our advertisers in renewing their contracts, prac- 

 tically all of which have been renewed, we are led to believe that our 

 readers appreciate the advertisers of the journal and that they are 

 receiving most satisfactory returns from the Journal as a medium of 

 publicity. 



The Journal has 140 complete volumes of Vol. I and 500 of Vol. 

 2. According to the vote of the company in December, 1908, the price 

 of Vol. 1 will be advanced as soon as the stock has been reduced to 100 

 copies, so that any institutions or libraries wishing complete sets will 

 profit by securing them at once. 



Bills for Volume 3 will be mailed to all 1909 subscribers and we 

 shall assume that subscribers wish the Journal continued unless 

 informed to the contrary. If remittances for Vol. 3 or orders for its 

 continuance have not been received by April 1 the subscriber's name 

 will be dropped from the mailing list as required by the orders 

 of the post office department. A prompt remittance will therefore 

 greatly aid the manager and avoid unnecessary inconvenience. 



It is our hope to increase our subscription list to over 600 this year, 

 and sample copies will be gladly sent to any interested. 



We commend to the thoughtful consideration of our colleagues, a 

 paper in this issue on one phase of parasitism. It illustrates in an 

 admirable manner the complex character of the factors determining 

 the ability of one organism or group of organisms to successfully con- 

 trol injurious species, and emphasizes the necessity of scientific in- 

 vestigation preceding in large measure at least, attempts at practical 

 application. American entomologists now have an opportunity of 

 studying the progress of one of the greatest experiments in the em- 

 ployment of parasitic insects. The scientific portion of this under- 

 taking in New England has already resulted in material additions to 

 our knowledge of parasitic and predaceous forms, while the practical 

 results are most encouraging. Studies of various phases of the 

 natural control of insect pests are being made by entomologists here 

 and there throughout the country and must eventually result in the 

 accumulation of data indispensable to those attempting to make prac- 

 tical use of such agents. With such knowledge as a basis, it may even 

 be possible to discover or develop forms or races with a superior effi- 

 ciency. 



