| (a) | - | A gives a field to B, reserving to himself, with B's assent, the right to take back the field in case B and his descendants die before A. B dies without descendants in A's lifetime. A may take back the field. |
| (b) | - | A gives a lakh of rupees to B, reserving to himself, with B's assent, the right to take back at pleasure Rs. 10,000 out of the lakh. The gift holds good as to Rs. 90,000, but is void as to Rs. 10,000, which continue to belong to A. |