Copy letter from Robert William Frederick Harrison, to Professor Sidney Martin, Fellow of the Royal Society, Chairman of the Physiology Sectional Committee Harrison encloses a letter from Professor Sherrington regarding a reduction in the illustrations for two papers by C E Walker, which he communicated, namely 'Observations on the life-history of Leucocytas' and 'On the origin of the Sertoli or Foot-cells of the Testis'. He communicates that the illustrations to the first paper are estimated to form four plates and cost £24, with those to the second to cost £8 and 10 shillings. He asks that Martin minute his instructions on what further steps are to be taken with regard to these papers. 12 March 1906