1904 FORESTRY AND IRRIGATION 65 



an overflow, but it will protect the land farms. The Bureau of Forestry can be 



so that the injury of the flood will be of great assistance in these operations 



limited to the growing crops. This in the way of furnishing general infor- 



would seem to be a most important point mation and instruction in regard to the 



for the owners of all low land along most advisable ways of solving the varied 



these rivers to consider. They should problems to be met on every hand, 



provide for protection of this bottom During the year 1904 we should see a 



land so that loss may be confined to one good start made toward permanent im- 



season's growing crop. provement of this valley, which is one 



Catalpa and Green Ash can be grown of the richest and most productive 



quite near the water, and should they be bodies of land in the United States, 

 underwater for a reasonable length of (EDITOR'S NOTE. Mr. G.L/. Clothier, 



time they will sustain no serious dam- of the Bureau of Forestry, has recently 



age. Fruit trees, however, will not made a study of the conditions in the 



stand immersion, as the presence of Smoky Hill and Kansas River valleys, 



thousands of dead trees in the Kansas from Salina to Kansas City, and by 



valley shows at this time. public discussions and otherwise has 



It is hoped that many acres of this endeavored to stimulate the planting of 



damaged land will be improved to such trees along the streams both for protec- 



a degree that by 1915 it will be as valu- tion from erosion and also to reclaim 



able as any portion of the neighboring lands covered by sandy deposits.) 



THE BLUE GUM. 



A BRIEF STUDY OF EUCALYPTUS GLOBULUS AND 

 OTHERS OF THE SAME GENUS IN CALIFORNIA. 



BY 



JOHN B. ANDERSON, 



BUREAU OF FORESTRY, 



THE Eucalypts are natives of Aus- best seems to be just south of L,os An- 



tralia. About the middle of the geles, around Florence, Compton, Santa 



last century they t were imported into Fe Springs, Long Beach, and the vi- 



this country, but until about thirty cinity, though we also find fine groves 



years ago they were not planted exten- at Berkeley, Newark, El Cajon, and 



sively. Santa Barbara. The Eucalypts will 



Of all the species, numbering about necessarily remain confined to this re- 



150, the common Blue Gum (Eucalyp- gion in California, and perhaps to cer- 



tus globulus] has received the greatest tain limited areas along the Gulf coast, 



attention ; in fact, it is practically the It is useless to try to introduce them in 



only Eucalypt planted on a commercial any other parts of the United States, 

 scale in the United States. The soil best adapted for the growth 



This tree is found from a point more of Eucalyptus seems to be a deep sandy 



than 200 miles north of San Francisco loam with the ground water close to the 



southward along the coast into Mexico, surface, such as is found in the Los 



It does not seem to thrive inland, Angeles Valley. The soil here is 



except in favored localities, where the strongly alkaline, but this fact does not 



temperature does not fall below 4- 18 seem to affect the growth of the trees 



degrees and where irrigation is avail- in a deleterious way. 

 able or the ground water is near the Along the coast the heavy fogs en able 



surface. The region where it thrives the tree to grow without irrigation. 



