THE SOUTH HAVEN POMOLOGICAL SOCIETY. 507 



drainage in your society, and the modifying influences in connection there- 

 with. 



Third — Ilave you any statistics from other localities bearing upon this point, 

 and npon which you base theory of comparative protection varying with alti- 

 tude ? I am anxious to get at something definite in this direction: we lack 

 accurate statistics. Very truly, 



Chas. W. Garfield. 



REPLY. 



South Have-n", Mich., February 20, 1875. 

 Dear Sir: — In reply to your letter of inquiry as to our record of tempera- 

 ture, I would say it is difficult to give any exact figures unless you take into 

 account the varying differences of the temperature of the air and water, Avhich 

 are constantly altered by the heat of the sun, which would require an averag- 

 ing of our records to cover these variances, which would give us with the tem- 

 perature of the air on the western shore of Lake Michigan, at the water's 

 surface, 30° below zero : on the eastern shore, here, it would indicate about 

 zero. At 100 feet altitude on the western shore at the same time it will indi- 

 cate 2G^ below, and on this side, at the same elevation (100 feet), 12° below. 

 At 200 feet elevation on the other side, 20° below, and at that altitude here 

 20° below. So that on our shore, with a cold wind from Wisconsin, it is 

 warmer near the level of the lake. Thirty to forty miles inland on a level sur- 

 face the temperature at the same time will indicate 15° below zero ; at 100 feet 

 elevation, 12° below ; at 200 feet elevation, 5° below, receiving an average 

 benefit in crossing the lake of 10 degrees; and since the Avinter cold comes 

 from the west principally, I might say that the Lower Peninsula of Michigan 

 is 10 degrees warmer in winter than Wisconsin. In a calm, with good at- 

 mospheric drainage, the temperature on the level of the lake indicating zero 

 will give a record, at 100 feet elevation, of 8° above zero, and at 200 feet 20° 

 above. So that in a calm which frequently follows a storm, our average alti- 

 tude of CO feet, with perfect air drainage, protects the fruit in -winter and 

 prevents any occurrence of frosts in summer. 



H. E. BiDVVELL. 



FRUIT PACKAGES. 



South Havek, March 6, 1875. 



The regular weekly meeting was opened by the president calling attention 

 to the fact that the State Pomblogical Society desired each local society to 

 carefully prepare a list of fruits adapted to its locality, for the purpose of re- 

 vising the list for Michigan, which was in process of preparation for publica- 

 tion by the American Pomological Society. 



A committee of four were appointed to prepare a list for the society. The 

 committee were N. Phillips, H. E. Bidwell, Geo. L. Seaver, and A. S. Dyckman. 



The secretary informed the society that the box of books kindly sent by the 

 Secretary of State for their library had been received. Whereupon a vote of 

 thanks was tendered him for the same. 



