68 LIST OF CONTRIBUTORS. 



Harris, Edward. Description of a new species of Parus from the 

 Upper Missouri. P '45, 300 



Geology of the country bordering on the Missouri River. 



P '45, 235 



On the difference of levels between the waters of the Gulf 



of Mexico and those of the Atlantic Ocean. P '46, 34 

 — On cottonwood and chips cut by beavers. P '57, 107 

 — ■ On Salmo gloverii. P '58, 135 



Harris, Gilbert D. New and otherwise interesting Mollusca from 



Texas. P '95, 45 

 New and interesting Eocene Mollusca from the Gulf States. 



P '96, 470 

 Harris, T. W. Description of three species of the genus Cremas- 



tocheilus. J v, 381 

 Harshberger, John W. Botanical observations on the Mexican 



flora, especially on the flora of the valley of Mexico. P '98, 372 

 Thermotropic movement of the leaves of Rhododendron 



maximum L. P '99, 219 

 ■ An ecological study of the New Jersey strand flora. P 



1900, 623 



— The limits of variation in plants. P '01, 303 



— An ecological sketch of the flora of San Domingo. P '01, 554 



— Cockscomb fascia tion of pineapple. P '01, 609 



— ■ The germination of the seeds of Carapa guianensis Aubl. 

 P '02, 122 



— Two fungous diseases of the white cedar. P '02, 461 



— Additional observations on the strand flora of New Jersey. 

 P '02, 642 



— The mutation of Hibiscus moseheutos L. P '03, 326 



— The form and structure of the mycodomatia of Myrica ceri- 

 fera L. P '03, 352 



— The comparative age of the different floristic elements of 



eastern North America. P '04, 601 



— Original centers concerned in North American plant dis- 

 persal. P '05, 2 



— The plant formations of the Bermuda Islands. P '05, 695 



— The hour-glass stems of the Bermuda palmetto. P '05, 701 



— The directive influence of light on the growth of forest 



plants. P '08, 449 



— Action of chemical .solutions on hud development : an experi- 

 mental study of acclimatization. P '09. 57 



