94 Bulletin 78 



December 10, the minimum temperatures being 22° at the ground, 

 29° in the government shelter, and 34° at the Weather Bureau. 

 During 1903, they were killed December 4, when the minimum tem- 

 peratures were respectively, 25°, 34°, and 40^^ at the above points. 

 As the heat causes the keeping of potatoes through the summer 

 to be very difficult, the saving of a portion of the spring crop for 

 seed for planting the next winter is not attempted; and as the fall 

 crop is both very light and insufficiently matured, none of it is 

 ordinarily used for seed about Phoenix. Nearly all the seed used 

 for winter planting comes from the Pacific coast. Attempts have 

 been made at the farm to preserve seed from season to season, but 

 without satisfactory results. Attempts have also been made to 

 interest growers in neighboring mountain valleys to produce seed 

 for the warmer valleys, but the local demand near the former is so 

 great that these attempts have met with no better success. The 

 impracticability of preserving seed for succeeding plantings inter- 

 feres materially with experiments with this crop, and renders the 

 planting of varieties not grown near the region expensive. 



PUMPKINS AND SQUASH 



There is very little difference between the squash and the 

 pumpkin. Pumpkin is the name given to the golden-yellow, flat- 

 tened, ribbed types of the same species to which the summer squash 

 belongs. The stem of the pumpkin has no enlargement where it 

 joins the fruit, but many types of squash have. 



The bush squashes do well in the southern districts planted in 

 the spring after danger of killing frosts. To take the place of the 

 Hubbard squash, which does not thrive in the warm districts, the 

 Cashaw should be grown, June or July being the best time for 

 planting. 



In cool sections the Hubbard squash can and should be grown 

 to a greater extent, as there is good demand for it in our markets. 

 Pike's Peak is a good squash of the Hubbard type. Squash can be 

 grown as a farming crop. 



QUINCES 



Quinces succeed in all parts of the State when provided with 

 sufficient water. They are never injured by the cold of winter and 

 it is very rare that their blossoms are killed by spring frosts. They 

 withstand admirably the heat of summer in the southern valleys 

 provided they are headed low and so pruned as to provide shade 



