17/2 and 24/2 I defined ¡­

17/2 and 24/2 I defined the tangent and cotangentbundle and I talked about vectorbundles in general (3.2). 3/3 I defined orientability for a vectorbundle in general, and I also talked about vectorfields and 1-forms (2.5). During these weeks I also finished the remaining exercises I gave 10/2: 10/3 I lectured 2.6 and 2.7. 17/3 I will start on chapter 4. The third hour I will look at exercise 2.3.