NEW YORK. Jan. 29 - The trial of Captain Franz von Papen, charged with conspiracy to defraud the government, was set for today. The trial will go to the jury tomorrow. Both sides summed up today, testifying as the final witness for the defense, while admitting that he arranged for the purchase and delivery of dynamite, denied that it was true that the explosive was to be used to blow up the Welland Canal. The name of Captain Franz von Papen was mentioned frequently. The witness admitted that upon his arrival in the country from Germany he reported to Von Papen that he had reported to Von Papen that he had purchased the dynamite at the instance of an emissary of Von Papen. The counsel, in summing up the disputed case, stated that Tauscher was no one's dupe. 