CONTENTS. 



PAGE. 



THE CALIFORNIA FRUIT INDUSTRY 9 



CITRUS CULTURE IN CALIFORNIA - 13 



PRIMITIVE ORCHARDS 17 



EXPANSION OF ORANGE CULTURE 20 



TABLE OF CITRUS FRUIT PRODUCTS 21-22 



ESPECIALLY FAVORABLE AND DANGEROUS LOCALITIES 22 



POLLINATION HYBRIDS 23 



METHODS USED IN HYBRIDIZING PLANTS. By W. T. Swingle and 



H. J. Webber 26 



WHAT ARE HYBRIDS? By W. T. Swingle and H. J. Webber 29 

 PURPOSE AND GROWTH OF PRIMAL TYPES. By Wm. C. Fuller - 30 



PERIOD OF FRUITFULNESS 42 



THE AGE OF CITRUS TREES. By E. W. Holmes 43 



THE ORANGE. 



VARIETIES THE SWEET ORANGE 49 



NAVEL TYPE 51 



Washington Navel History of - 51-58 



ST. MICHAEL TYPE - 59 



BLOOD TYPE 61 



STANDARD VARIETIES WITH No DISTINCTIVE MARK 61 



TANGIERINE-MANDARIN TYPE - 63 



MISCELLANEOUS JAPANESE CITRUS FRUITS 66 



KUMQUAT TYPE - *"':'" * - " - ; - ' 69 



THE SOUR ORANGE 70 



THE BITTER ORANGE 72 



MYRTLE-LEAF TYPE 72 



THE SHADDOCK 73 



THE POMELO 75 



THE OTAHEITE ORANGE 82 



THE DECIDUOUS ORANGE 83 



MISCELLANEOUS VARIETIES 83 



PROPAGATION OF THE ORANGE 84 



BUDDING ------- 91 



WORKING OVER LARGE ORANGE TREES - 95 



PLANTING - 100 



SOILS 105 



IRRIGATION - 106 



CULTIVATION - 109 



SUBSOIL PLOW. By J. H. Reed - 110 



PRUNING 114 



THE ORANGE CROP GATHERING, ETC. 121 



THE STANDARD ORANGE Box - 123 



STANDARD CAR OF ORANGES 125 



ORANGE DROPPING, DISEASES, ETC. 127 



YELLOW AND VARIEGATED LEAVES - - 128 



GUM DISEASE 130 



