THE NAUTILUS. 43 



opening was usually oblong and about one or two millimeters 

 long. Here the trail was so thorny and the gulches so deep we 

 could walk only about a mile per hour in the mountain. Two 

 days were given to the slide. 



We had good success in the Tumacacori, Cayetano, Patagonia 

 and other mountains on all sides of the peaks and had forgotten 

 that in some ranges shells lived only on the north side. On the 

 fourth trip to the Whetstone, while passing the north side of a 

 small peak to get to the largest in the range, another Sonorella 

 wag found alive and plentiful. Also Oreohelix huachucana and 

 a Holospira. 



We feel certain there are a considerable number of undis- 

 covered snails in the limestone, well watered and timbered (8,000 

 feet) peaks of the Whetstones, on the north side. Some of these 

 we examined, on the south side. 



The rains arrive in Arizona in July, which is the best grow- 

 ing month; but this year in the first week of May the Mariposa 

 group of lilies covered the slopes. The west mesa of the Santa 

 Ritas was a golden yellow, for the poppies were in bloom. Also 

 the large white thistle poppy. The Ocotillo (Crown of Thorns) 

 with a deep crimson spike, and cactus bloom, white, crimson 

 and orange, warmed up the desert hills. The last night out 

 blankets were spread in the dry bed of a stream in a pass of the 

 Mustangs. It was really a beautiful place. Gravel makes a 

 good bed, as desert beds run, and the banks were decorated with 

 spreading walnuts and oaks. The jumpers and cottonwoods 

 were artistically rounded and all in full leafage. Three kinds 

 of doves were talking, a cardinal, a thrasher and the vermillion 

 fly-catcher were singing just at sundown, and the black and 

 white scolding hummingbird in our tree, nervous in the face of 

 distinguished company, had settled down in his thimble nest 

 for the night. 



The Mustangs are not large mountain, but they have pleasing 

 profiles, domes and table tops, for background purposes, when 

 the moon is up a little way and the evening star is in close con- 

 junction. Arizona nights are a cut-glass, crystal affair. Not 

 smoky and beclouded. 



When the after-glow was just about right I led the partner 



