312 ANNUAL, REPORT OF THE Off. Doc. 



the part that these and other internal and external parasites play in 

 Nature is so important that the earth would become uninhabitable 

 for mankind in less than ten years time were it not for their pres- 

 ence. Fortunately, birds, which are also valuable allies of the 

 farmer, do not prey to any great extent upon the beneficial insects. 



In this discussion, the insects which are scavengers in removing 

 decaying organic material and other offensive substances should not 

 be ignored. The hurrying beetles, rove beetles, tumblebugs and 

 fungus gnats have their important parts to play. 



While all farmers and fruit-growers should learn to recognize 

 the beneficial insects, birds, etc., which aid them in suppressing 

 their pests, it is unfortunate that very little can be done from a 

 practical standpoint toward propagating these creatures. This is 

 owing to the nature of their food. Only where it is abundant is it 

 possible to propagate the parasites, and as soon as the food is re- 

 duced in amount, the parasites become accordingly reduced in num- 

 bers. 



The illustrations shown were all made by the speaker, mostly 

 from specimens either in the Museum of the Pennsylvania State 

 College or in the collection which he has made as Economic Zoolo- 

 gist, at Harrisburg. 



In conclusion, he said that while this was a subject dealing with 

 small things, it at least would help us to see some of the great 

 results of these in Nature, and we should thus ^'Call not that mean 

 which a Father's hand hath made." 



Court House, Bcllefonte, Pa., Friday Morning, Oct. 14, 1904. 

 Mr. Matthew Rodgers, Chairman. 



The CHAIRMAN: The first thing upon the program this morn- 

 ing will be a paper by Prof. Franklin Menges, entitled, "Methods of 

 Cultivating Hay and Leguminous Crops."* 



The CHAIRMAN: We find the next subject on the program is 

 ''Egg Production," by Mr. J. T. Campbell. 



The following paper was then read by Mr. Campbell: 



EGG PRODUCTION. 



By Mb. J. T. Campbell, Hartstoivn, Pa. 



In order to achieve permanent success in any branch of agricul- 

 ture, the heart, head and hand must be united in the work. No 



*Tka very- valuAble pai>er rea4 by Prof. Menges, wa« not fumiahed tor this bulletin. 



