26 ANNUAL REPORT OF THE Off. Doc. 



MILK HYGIENE 



Under the act approved March 30th, 1905, and by request of the 

 l)roperly authorized officials of tlie city, this Board undertook the 

 worlv of inspectiuo- llic farms from AA'hich the milk supply of Phila- 

 delphia was derived. The main objects of the inspection were to 

 determine what proportion of tlie supply was coming from bad 

 dairies and to what extent the sui)ply would be reduced by eliuiinat- 

 ing these, and whether such inspection could be made sufficiently 

 educative to induce the careless dairyman to produce a higher grade 

 article, which latter proved to be the case. The results of this in- 

 spection are tabulated in the report and they show according to the 

 requirements of the score card, also included in the report, that 

 about 9 per cent, of these dairies produce milk that is prejudicial 

 to public health. 



On October 1, the entire work of dairy farm inspection was trans- 

 ferred to the State Livestock Sanitary Board. With our previous 

 cxpeiience of the inspections conducted in the vicinity of Phila- 

 delphia, we were capable to fonmulate plans to make a systematic 

 inspection of the entire State and make it an educational campaign, 

 and likely in the near future safeguard the general milk supplj^ of 

 the State as well as foster and encourage the dairy industry. 



It is impossible to estimate the value of this service to the State, 

 and the possibilities for its future usefulness are still greater and 

 an appropriation for its maintenance should be as liberal as its 

 service is valuable. 



REPORT OP THE ECONOMIC ZOOLOGIST 



The report is divided into ten sections: 



First. Correspondence, examining specimens, and answering ques- 

 tions. 



Second. Investigations and experiments. 



Third. Publications. 



Fourth. Lectures. 



Fifth. Inspection of nurseries and private premises. 



Sixth. Inspection of imported plants, seeds and fruits. 



Seventh. Making collections. 



Eighth. Inspection of orchards. 



Ninth. Demonstrations. 



Tenth. Exhibits. 



CORRESPONDENCE 



During the year 8,530 letters were written from this office, made 

 up of general correspondence, 6,215 letters, model orchard corres- 

 pondence, 1,347 and inspectors letters, 963. By far the largest num- 

 ber of the letters of general correspondence are in answer to ques- 

 tions in regard to insect pest suppression, the spray materials to use 

 for this suppression, the kind of apparatus, and orchard management. 



INVESTIGATIONS AND EXPERIMENTS 



The concentrated home-made lime aud sulphur is advanced as the 

 best material for San Jose scale, made according to the formula of one 

 pound of lime, two pounds sulphur and one gallon water, boiled one 

 hour and diluted with approximately seven gallons of water. This 



