Part 1

Illustration: Fig. 1. View of the Oasis of Laghouat

Illustration: Fig. 2. Wood market at Laghouat. Juniper, oak, pine, and other kinds of wood, each bunch a camel load, exposed for sale.

Illustration: Fig. 3. Wood market at Laghouat. Roots of Zizyphus, branches of juniper and pine, and pine bark. The latter is said to be used for staining.]

BOTANICAL FEATURES OF THE ALGERIAN SAHARA

BY WILLIAM AUSTIN CANNON

WASHINGTON, D.C. PUBLISHED BY THE CARNEGIE INSTITUTION OF WASHINGTON 1913

CARNEGIE INSTITUTION OF WASHINGTON PUBLICATION NO. 178

PRESS OF J.B. LIPPINCOTT COMPANY PHILADELPHIA

CONTENTS. * * * * *

PAGE Introduction 1

Geographical Characteristics of Algeria 2

Climate of Algeria 6

Some Characteristics of the Vegetation of the Tell 15

The Forests of Algeria 18

The High Plateau 20

Boghari to Laghouat 20

Djelfa to Laghouat 22

Laghouat 23

The Oasis of Laghouat 24

The Plain 25

The Dunes near Laghouat 27

The Mountains about Laghouat 28

Effects of Grazing on Vegetation near Laghouat 29

From Laghouat to Ghardaia 31

Region of the Dayas 31

Daya of Tilrempt 32

The Chebka 34

Ghardaia 36