Set up the apparatus as shown, then fill the burette with water to the brim. Drain this water into a 100ml measuring cylinder and record its volume, V2. Calculate the volume of excess water above zero mark, V3.

Diameter $d = 3.8$ cm

total height 10 cm, oil layer 4 cm).
Height of oil $h_{\text{oil}} = 4$ cm
Height of water $h_{\text{water}} = 10 - 4 = 6$ cm

Formula: $V_{\text{oil}} = \pi r^2 h_{\text{oil}}$ cm³
Substitute:

First, $3.61 \times 4 = 14.44$

(using $\pi \approx 3.14$)

Formula: $V_{\text{water}} = \pi r^2 h_{\text{water}}$ cm³
Substitute:

First, $3.61 \times 6 = 21.66$

(using $\pi \approx 3.14$)

Final answers:
Volume of oil: $\boxed{45.36~\text{cm}^3}$
Volume of water: $\boxed{68.05~\text{cm}^3}$