ANTIMALARIALS OTHER THAN QUININE 
267 
chemotherapeutic properties because of 
decomposition of the active principle or 
lack of proper pharmacological technique. 
Almost none of the hundreds of alkaloids 
and glucosides isolated from tropical plants 
during the period prior to the introduction 
of the bird malaria test has been subjected 
to a pharmacological analysis which today 
could be regarded as adequate. It may 
therefore be justified to expect unforeseen 
and valuable results from a thorough rein¬ 
vestigation of this field. 
