(I) The evidence of every witness shall start with his name, address, occupation and age and an indication that he has been sworn or affirmed. (2) The evidence of each witness shall be taken down in writing by the presiding judge or, if, for some reason, he is unable to record the evidence, by another judge or clerk under his personal direction and superintendence. (3) The evidence shall be divided into evidence-in-chief, cross-examination and re-examination with a note as to where the cross-examination and re-exa- mination begin and end. (4) The evidence shall ordinarily be taken down in the form of a narrative: Provided that the presiding judge may, in his direction, take down or cause to be taken down any particular question and answer.