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THE NATIONAL GEOGRAPHIC MAGAZIN 



THE LESSON OF A CRACK IN THE BARK 



This bit of bark, to the unaided eye. had the appearance of any normal bark filled with 

 numerous cracks ; but many of these apparently harmless-looking cracks, when examined 

 under a magnifying glass, proved to be filled with the eggs of a camphor thrips, a pest which 

 now threatens failure to what was believed to be a promising camphor industry in Florida. 

 Pests introduced in this obscure manner may cost the country millions. 



EIGHTEEN MILLION NARCISSUS BULBS IN FIFTEEN THOUSAND CASES! 



Unlimited importation is still permitted of the more popular bulbs, including narcissus, 

 tulip, hyacinth, lily, and crocus. The photograph illustrates a single shipment of narcissus 

 bulbs on the dock at New York awaiting distribution. There is still some risk of the entry 

 of new pests, even with such clean bulbs, and it is hoped that the time may soon come when 

 these bulbs will be produced in this country in sufficient quantities to meet home needs. 



