34 " NINTH REPORT. 



53. Breeding Habits of Amblystoma punctatum, B. G. Smith. 



54. Notes on the Fall Migration of 1906, Norman A. Wood. 



55. Trial and Error Movements in the White Rat, O. C. Glaser. 



56. Museum Methods in Operation at the University Museum, F. S. Hall. 



57. Movement and Problem Solving in Ophiura brevispina. 0. C. Glaser. 



58. Habits of Blarina brevicauda, the Short-tailed Shrew, Franklin Shull. 



59. Stridulation of the Snowy Tree Cricket, Franklin Shull. 



60. Some Changes in the Michigan Bird List, W. B. Barrows. 



61. The Fall Migration of Birds on Isle Royale, Max M. Peet. 



62. A collection of Reptiles from Southern New Mexico and Arizona, 

 A. G. Ruthven. 



63. Water Systems in Plants, J. B. Dandeno. 



64. An Experiment to Show Whether Bumble Bees are necessary to Pol- 

 lenize Red Clover, W. J. Beal. 



65. Notes on Pure Food investigations, Floyd W. Robison. 



66. Bounties for Harmful Animals, Walter B. Barrows. 



