CONTENTS. 
Transactions: 
Annual Address by the President: 
“Some Advances Made in Our Knowledge of Immunity 
and Protective Inoculation,” 
Henry Winston Harper 5-33 
“The Work of the Sanitary Engineer in Its Relation to the 
. Public Health,” 
J. C. Nagle 35-55 
“The Development of the Present Texas Railway System,” 
R. A. Thompson 57-80 
1. “Cretaceous of Obispo Canyon, Sonora, Mexico.” 2. “Oc- 
currence of Oyster Shells in Volcanic Deposits in Sonora, 
Mexico,” 
E. T. Dumble 81-82 
“Note on the Mart and Bluff Meteorites,” 
O. C. Charlton .. 83-84 
“On the Fossils of the Texas Cretaceous, Especially Those Col- 
lected at Austin and Waco,” 
John K. Prather 85-87 
“Wood Preserving by Painting with, or Immersing in, Tar 
Oils,” 
E. P. ScWch 88-92 
Proceedings: 
Officers and Council for 1900-1901 v 94 
Titles of Papers Read Before the Academy From January 12, 
1900, to December 29. 1900 95-97 
In Memoriam 98 
List of Patrons and Fellows 99-100 
List of Members. 
100-102 
