  We present the results of a survey, the deepest to date, for HI emission at
21 cm and OH emission at 18 cm (lines at 1612, 1665, 1667 and 1720 MHz) in the
direction towards the Galactic globular clusters M 15, M 2, NGC 6934, NGC 7006
and Pal 13. The aim is to measure the amount of hydrogen in the intra-cluster
medium (ICM), and to find OH masers in the circumstellar envelopes of globular
cluster red giants. We present a tentative detection of 0.3 Msun of neutral
hydrogen in M 15 and possible detections of neutral hydrogen in M 2 and Pal 13.
We derive upper limits to the neutral hydrogen content of NGC 6934 and NGC
7006. No OH emission is detected. We also present deep HI data of the northern
tip of the Magellanic Stream behind Pal 13.
