7g The Philippine Journal of Science 1923 



plete in all other respects, but lacking in this one essential, the 

 guinea pig develops scurvy as early as the fifteenth day and 

 death occurs, usually, on the nineteenth to the twenty-third day. 



The clinical symptoms of scurvy in the guinea pig are the 

 following: Preliminary loss of weight, swelling of wrist and 

 knee joints, and occasionally hyperemia of the gums with dull- 

 ness of the lower incisors. Fractures of the long bones and 

 general fragility are common. Post-mortem examination shows 

 "hemorrhages found in the muscles, bone marrow, more fre- 

 quently at the end of diaphyses, tooth pulp, costochondral 

 junctions, and occasionally in the skin and lymph glands; 

 enlargements of the ends of the long bones, especially the lower 

 ends of the radius and ulna, the upper end of the tibia, and 

 the costochondral junctions ; and swollen lymph glands especially 

 the inguinal and axillary." (3) 



The following fruits and vegetables were tested at the Bureau 

 of Science in Manila : 



Chico, Achras sapota Linnaeus. 



Papaya, Carica papaya Linnaeus. 



Pomelo, Citrus maxima Merrill. 



Guava, Psidium guajava Linnaeus. 



Lansones, Lansium domesticum Correa. 



Banana, Musa cavendishii Lambert. 



Banana flower bud. 



Coconut, Cocos nucifera Linnaeus. 



Pepino or cucumber, Cucumis sativas Linnaeus. 



Kangkong leaves, Ipomoea reptans (Linnaeus) Poiret. 



Camote leaves, Ipomoea batatas (Linnaeus) Poiret. 

 In addition to the fruits tested at the Bureau of Science in 

 Manila, another fruit, the Chinese persimmon, Diospyros kaki 

 Linnseus, was tested at the Union Medical College, in Peking, 

 China. 



Filipinos usually cook the camote and kangkong leaves and 

 use them as greens. The banana-flower bud is boiled and used 

 as a vegetable by most Filipinos, and to a limited degree by 

 foreigners as well. In our feeding experiment, however, we 

 cut the camote and kangkong leaves fine and gave them raw. 

 In the case of the banana-flower bud and of the coconut, we 

 expressed the juice and fed the undiluted juice, since the guinea 

 pigs would not eat either the bud or the shredded coconut meat. 

 The other foods were given in their raw, natural state. 



