  We present the results of susceptibility \chi(T) and magnetisation M(H)
measurements performed on single crystal samples of the rare-earth oxides
SrLn2O4 (Ln = Er, Dy and Ho). The measurements reveal the presence of magnetic
ordering transition in SrHo2O4 at 0.62 K and confirm that SrEr2O4 orders
magnetically at 0.73 K, while in SrDy2O4 such a transition is absent down to at
least 0.5 K. The observed ordering temperatures are significantly lower than
the Curie-Weiss temperatures, \theta_{CW}, obtained from the high-temperature
linear fits to the 1/\chi(T) curves, which implies that these materials are
subject to geometric frustration. Strong anisotropy found in the \chi(T) curves
for a field applied along the different crystallographic directions is also
evident in the M(H) curves measured both above and below the ordering
temperatures. For all three compounds the magnetisation plateaux at
approximately one third of the magnetisation saturation values can be seen for
certain directions of applied field, which is indicative of field-induced
stabilisation of a collinear {\it two-up one-down} structure.
