We present AC-, DC-susceptibility and magnetization measurements of th
e RNi(4)B series from which we determine the paramagnetic properties o
f RNi(4)B (R = Y, La, Ce). The ferromagnetic order of RNi(4)B(R = magn
etic rare earth) is similar to those of the RNi(5) series with the exc
eption of SmNi4B and TbNi4B wherefor the former the highest ordering t
emperature in this series (39K) together with a spin reorientation at
31.7K occurs.