  The temperature dependence of magnetic susceptibility of the
Bi$_{2-y}$Sr$_{y}$Ir$_{2}$O$_{7}$ system was studied from 2 to 300 K. According
to these measurements, the solid solution $(0\leq y\leq 0.9)$ does not show any
magnetic transition; however, a noticeable deviation from the Curie-Weiss law
occurs and the magnetic behavior of this system can be ascribed to short-range
magnetic order that is also present in several geometrically frustrated
systems. The Pauli magnetic susceptibility decreases as the Sr content
increases, this can be associated with a shift towards Ir$^{5+}$ in samples;
also the Ir effective magnetic moment decreases. The estimated Wilson-ratio
indicates the presence of strong electron-electron correlations.
