variety of grades, with a view to the study of their results in their 

 bearing upon the question as to what is a proper legal standard for 

 milk solids in this State. Experiments are likewise in progress to 

 determine the influence of different elements and combinations of 

 elements of plant food on the proportion of the different species 

 of grass and other plants in a mixed sod. 



The Entomological. 



So great a demand arose for information respecting the gypsy 

 moth, that, though a special bulletin on the subject, in an edition 

 numbering 23,000 copies, had been issued in November, 1889, it 

 was found necessary to reprint it as a part of Bulletin No. 7, and 

 distribute it through our regular channels in all parts of the State, 



Efforts during the year have been directed as follows : — 



1. The completion of the life history of the bud moth 

 {Tmetocera oceZ^ana), and the best methods for its destruction. 

 This small insect has, in various parts of the State, done con- 

 siderable damage to our fruit trees, and the final results of the 

 investigation, which has covered a number of years, will be 

 reported in Bulletin No. 12. 



2. The insects affecting the cranberry vines have been care- 

 fully studied, but no definite conclusions having been reached, the 

 various experiments made with different insecticides will be 

 continued through the coming season. 



3. Particular attention has been paid to the breeding of 

 injurious insects, sent in by diff"ereut individuals throughout the 

 State, for the purpose of determining their life histories, and thus 

 learning the period at which they are most vulnerable. 



4. A series of experiments have been made with Paris green to 

 ascertain the maximum percentage that could be used on fruit 

 trees without injury to the foliage, in wet as well as in dry 

 weather ; also the minimum percentage that will successfully 

 destroy the common injurious insects at different stages of their 

 growth. These experiments have led to such unexpected and 

 unsatisfactory results that final report will be withheld until they 

 can be repeated under different conditions. Trees under shelter, 

 under varying conditions of moisture, will be sprayed with 



