Part 1

Transcriber’s Note Italic text displayed as: italic

U. S. DEPARTMENT OF AGRICULTURE.

BUREAU OF PLANT INDUSTRY—BULLETIN NO. 90, PART III.

B. T. GALLOWAY, Chief of Bureau.

PEPPERMINT.

ALICE HENKEL, ASSISTANT, DRUG-PLANT INVESTIGATIONS.

ISSUED DECEMBER 28, 1905.

WASHINGTON: GOVERNMENT PRINTING OFFICE. 1905.

CONTENTS.

Page.

Description 5

Countries where grown 6

Peppermint cultivation in the United States 7

Cultivation 8

Conditions injurious to crop 9

Harvesting and distillation 10

Description of still 11

Peppermint oil and menthol 12

Export of peppermint oil 13

Prices of peppermint oil 14

ILLUSTRATIONS.

Page.

FIG. 1. Peppermint “runners,” showing method of propagation 6

2. Leaves and flowering top of peppermint 6

3. Peppermint still (after Dewey, in Bailey’s Cyclopedia of American Horticulture) 12

B. P. I—189.

PEPPERMINT.

DESCRIPTION.