100 ANNUAI. REl'ORT OF THE Off. Doc. 



The investigations of cerlain iiii|joitaiu iu.secls wliieli were begun ' 

 some time ago are coutinned, tiie only handicap heiug llio lack of 

 a place to conduct propei- investigations and experiments on living 

 trees, witliout the danger of destroying personal pro])erty by experi- 

 mentation. Nearly all tree owners are willing to have us demonstrate 

 on their premises, but experimenting is ditlerent Irom demonstrat- 

 ing, and may have adverse results. This oltice seriously needs a small 

 experimental plot or orchard. 



3. PUBLICATIONS 



Among the publications of the office have been the Ahmthly Bulletin 

 of the Bureau of Zoology, of which N'olume \'1I was comjjleted and 

 indexed. With this the Monthly Bulletin ceased, and the Bi-monthly 

 takes its place. 



The Weekly Press Letter, discussing timely topics of interest 

 and importance was issued regularly every Tuesday through the 

 year to the new^spapers of this State. The press has learned to 

 look for its coming and uses it extensively. Nothing has done more 

 to carry the practical work of this office to the farmers at the exact 

 time needed than this Weekly Press Letter. Incidentally, it has 

 also resulted in very materially increasing the correspondence and 

 duties in the office. 



4. LECTURES 



The Economic Zoologist has given considerable time and energy 

 to public lectures at meetings of various kinds, speaking chiefl}' 

 on the subjects of pest suppression, bee-keeping, orcharding and 

 plant preservation. In all, forty-five lectures or addresses were 

 made during the year. 



5. INSPECTION OF NURSERIES AND PRIVATE PREMISES. 



(A) Nursery Inspection 



Great care was given to the inspection of nurseries in Pennsyl- 

 vania during the summer, as well as during the winter, continued 

 by Mr. E. B. Engle as the Chief Nursery Inspector. This means 

 that there were two complete inspections of each nursery in this 

 State. The summer inspection was commenced on the first of August 

 and continued as rapidly as possible, wdth three inspectors in the 

 field, until the work was completed in September. 



The winter inspections were begun on the first of February as 

 has been our custom during the past tw'o years, and was likewise 

 continued wdth three inspectors in the field until all the nurseries 

 W'ere inspecte-d, and methods adofjted for the extermination of San 

 Jose scale from each nursery wherein it has been found. The need 

 of winter inspection of nurseries is to be seen in the fact that the 

 summer inspections in some instances must be completed before 

 the young San Jose scale has ceased to move, and, consequently, 

 carried from place to place, and the trees which may be found clean 

 during the inspection in August might also be infested by the scale 

 being carried to them before the approach of the dormant season. 



