. Tobacco investigations in Porto Rico during 1903-4. Tobacco Puerto Rico Field experiments. PORTO RICO AGRICULTURAL EXPERIMENT STATION, D. W. MAY, Special Agent in Charge. Mayaguez, December, 1904. Bulletin No. 8. TOBACCO INVESTIGATIONS IN PORTO RICO DURING 1903-4. BY J. VAN LEENHOFF, Jr., Tobacco Expert, Porto Rico Agricultural Experiment Station. UNDER THE SUPERVISION OF OFFICE OF EXPERIMENT STATIONS, U. S. DEPARTMENT OF WASHINGTON: GOVERNMENT PRINTING OFFICE. 19 0 5,. Please note that these images are extracted from scanned page images that may have been digitally enhanced fo
. Tobacco investigations in Porto Rico during 1903-4. Tobacco Puerto Rico Field experiments. PORTO RICO AGRICULTURAL EXPERIMENT STATION, D. W. MAY, Special Agent in Charge. Mayaguez, December, 1904. Bulletin No. 8. TOBACCO INVESTIGATIONS IN PORTO RICO DURING 1903-4. BY J. VAN LEENHOFF, Jr., Tobacco Expert, Porto Rico Agricultural Experiment Station. UNDER THE SUPERVISION OF OFFICE OF EXPERIMENT STATIONS, U. S. DEPARTMENT OF WASHINGTON: GOVERNMENT PRINTING OFFICE. 19 0 5,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Van Leenhoff, J. W. (Johannes W. ). Porto Rico Agricultural Experiment Station
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