Sentence:  States were free to enact , within broad though ( perhaps ) <WSD>determinate</WSD> limits , their own rules as to the application of foreign law by their courts , to vary the law merchant , and to enact legislation with regard to many claims arising on the high seas . 
Meaning of the word marked with <WSD> tags:  precisely determined or limited or defined; especially fixed by rule or by a specific and constant cause