《中西交通史料汇篇》第一册_张星烺着_民国丛书
中西交通史料匯篇 張星娘著
PREFACE: Itaffordsmenotalittlepleasuretohavebeen chosen by Professor Chang Hlsing-lang to present to Forelgnreaderstheworkentitled TheMuterialsfor aHistory of Sino-Forcign Relations.The author has signally honored Doctor Clougherty and myself by dedicating to us.this work.
mustbethoroughlyacquaintedwithallthreeelenentg in each particular relation,namely,the subject,the torm, and the grounds.If we know,for example,only the subject and not the term,or vice versa,,the term and not the subject,the whole relation eludes us. 
