THE NAUTILUS. 101 



upon an independent excursion of my own a mad cow ob- 

 structed the right of way. The law was upon my side but I 

 knew the peculiarities of Spanish half-breed cattle well enough 

 to get behind a tree, and did my best. Going around the tree 

 rapidly, I kept behind it all but once and then in a fleeting 

 second was fairly introduced. Grasping her heartily by the 

 horns, I shook them ; but the impulsive creature was really over- 

 whelming in her attention, and upon her knees walked all over 

 me. This spot is now marked, and it is quite a large one. 

 Luckily the same cowboy with his 45 that killed the bull, came 

 up the trail and with a bang released me from further embar- 

 assment. Pride only received a jolt. My horsehide coat was 

 cow -proof. 



Again when alone, and my thoughts were far away, just at 

 dusk, a robust mountaineer from the Great Smokies came into 

 camp to show me the mummied right hand of the last man who 

 climbed the trail to take him back to Tennessee. As a stranger, 

 and a little timid, it was my part to show that I had no partic- 

 ular interest in the specimen ; but those mountaineers possess 

 keen insight into the minds of the tender-feet and I presume 

 the camp site is marked also. However, the dwellers of the 

 high and lonesome will never find the spot where I lay out the 

 rest of the night watching to see if that uncanny naturalist was 

 coming back with any more fragments of his specimen. 



After leaving the limestone gulches of Sawyer Peak, shells 

 were rare. Sonorellas take kindly to granite ; but there are no 

 Sonorellas in this range. Ashmunellas are also friendly to 

 granite ; but the Oreohelix split. Ore. cooperi, the quaking-asp 

 fiend, and Ore. depressa, are found in all rocks and under down 

 timber ; but Ore. metcalfi and Ore. chiricahuana never leave the 

 limestone, neither do any of the Holospiras. Very seldom also 

 have any two of the same genus been found in the same colony. 

 Never with Holospiras, and with Ashmunellas only when a 

 toothed and a toothless form come together. In the Black 

 Canyon region I found a very few individuals of Ore. cooperi in 

 with colonies of Ore. depressa and we also found this great 

 rambler occasionally in the limestone with colonies of Ore. met- 

 calfi on Sawyer. In Southern Arizona we have found two and 



