ii WEST VIRGINIA EXPERIMENT STATION. 



PART II. 



THE PINE INVESTIGATION. 



THE PINE OF WEST VIRGINIA, . . . . . .271 



The white pine, 271. The yellow pine, 271. The pitch or black 

 pine, 272. The scrub or Virginia pine, 273. The table-mountain 

 pine, 273. The loblolly pine, 274. The red pine, 274. 

 Commercial products of pine, .... 276 



Past and present conditions of pine in West Virginia, 276. Original 

 distribution, 276. Present distribution and conditions, 277. In- 

 fluences which have caused the destruction of the pine timber of 

 the State, 278. The relation of the pine in amount and value to 

 other kinds of forest trees, 280. Rate of consumption to that of 

 natural increase, 281. Comparative value of second growth pine 

 to that of other kinds of timber trees, 281. 

 The principal enemies of the pine, ..... 281 



HISTORY OF THE INVESTIGATION TO DETERMINE THE CAUSE OF THE 



UNHEALTHY CONDITION OF THE TIMBER, . . . 282 



First Observations, 283. Correspondence, 284. 

 SPECIAL INVESTIGATIONS COMMENCED, .... 287 



Character of trouble described, 287. Investigations to determine 

 the cause of the trouble, 288. Trees dying from a disease, 288. 

 Trees dying probably from natural causes, 288. A peculiar char- 

 acter of the common trouble, 289. The cause of the common trou- 

 ble discovered, 289. 



The Dying Pine Forests, (Quotation from article), 291. Further 

 investigations, 292. Extract of article from Science, 293. 



THE CONSIDERATION OF REMEDIES, . . . 294 



The Importation of Natural Enemies of Bark-beetles Considered, 295 



The Pine and Spruce Threatened with Total Destruction, . 296 

 Special Correspondence to Owners of Spruce and White Pine Tim- 

 ber in West Virginia, 



Correspondence with Entomologists in Germang. . . 300 

 Letter from Oberforster Eichhoff , . . . .300 



Letter to Timber Correspondents, 301 



Amounts Contributed by Owners of Timber, . . 302 



Letter of Instructions from the Director (John A. Myers,) . 302 



ACCOUNT OF MISSION TO EUROPE, ..... 303 



Investigations near Hagenau, 304. The desired beneficial insect 

 found, 304. Return to Strassburg, 305. Investigations in Saxony, 



306. Returned to Strassburg, through Bavaria and Baden-Baden, 



307. Investigations continued near Hagenau, 308. Investigations 

 in the Vosges mountains, 309. Great destruction of timber by 

 snow and wind, 309. Observations on the habits of Clerus formi- 

 carius, 311. Further work prevented by a cholera epidemic, 313. 

 Letter from Director Myers, 314. Ten days in Switzerland, 315. 



RETURN TO AMERICA, ..... 316 



Stop at Washington, D. C. and Attend a Meeting of the Entomolo- 

 gical Society, 317. Remarks at meeting of Entomological Society 

 at Washington, (from Insect Life), 318. 



ON THE INTRODUCTION OF THE EUROPEAN BARK-BEETLE DESTROYER, 

 CLERUS FORMICARIUS TO AMERICA, (Extract from article in 

 Science by Camillo Schaufuss, translated from the German.) 319 



