I was wondering if anyone here could assist me, or lead me in the right direction on a couple of matters. The first deals with a line of Bottesini tutelage that I am told I belong to. The line goes through a student of his with the last name of Gambrini, who taught a D'Angelis. My problem is that I'm curious firstly with their full names, and secondly with who they were. Are there any means at my disposal to research this? The second question deals with a photocopy I have of an exercise attributed to Luigi Rossi. I'm curious as to whether Rossi actually published a book of exercises (or a method even) and if so, which the page I have presumes, do any full copies exist? I'm aware that I could be barking up the wrong tree with this, but I figure it better than not barking at all and being no better for it. Any assistance would be very much appreciated. Thanks in advance.