| Description | Consists of:
<li>data, graphs and calculations relating to the paper by Pearson and A Lee 'On the distribution of frequency (variation and correlation) of the barometric height at divers stations', <i>Philosophical Transactions of the Royal Society</i>, series A 190, 1897, pp 423-469.</li>
<li>manuscript paper "On a frequency registering barometer" by G U Yule with photograph of apparatus. </li>
<li>letters from Alice Elizabeth Lee and Robert Henry Scott discussing research.</li> |