  Recent CLEO results on the observation of the $\Upsilon(1D)$ state and a
search for the $\eta_b(1S)$ state from a data sample of $4.7 \times
10^6\,\Upsilon(3S)$ decays collected with the CLEO-III detector, and a
measurement of the $\eta^{\prime}$ production spectrum using $1.9 \times
10^6\,\Upsilon(1S)$ decays collected with the CLEO-II detector are described.

High Energy Physics - Experiment