FURTHER NOTES ON THE HABITS OF 

 AUTODAX LUGUBRIS. 



WM. E. RITTER. 



With the information about the breeding habits of this sala- 

 mander obtained by Mr. Miller and myself during the summer 

 of 1899 1 we supposed that in succeeding seasons we should 

 have little difficulty in securing sufficient eggs to enable us to 

 make a fuller study of its development. The next summer, con- 

 sequently we, and particularly Mr. Miller, searched for the eggs 

 constantly and carefully under logs and rocks and in half 

 decayed stumps all about the San Francisco Bay region, but 

 not a single egg rewarded our efforts. I have kept up the 

 quest each year since, but not until the present summer has 

 anything but failure come of it. Now. wholly by accident, the 

 usual breeding place of the species, for this locality at least, 



In caring for the oaks {0 it c reus agrif olid) on the campus of 

 the University of California this summer the trees have been 

 subjected to a treatment they have never before received. 

 This has consisted in the careful cleaning out of the decayed 

 wood and foreign accumulations from all accessible corners and 

 cavities, and of painting the walls of these with coal tar. and 

 then filling the smaller cavities with Portland cement. The 



