1. On the constancy of the number of villi in the duodenum of the post-embryonic domestic fowl;Clarke, R.M.;J. Embryol. exp. Morph,1967
2. Mucosal architecture and epithelial cell production rate in the small intestine of the albino rat;Clarke, R.M.;J. Anat. (Lond.),1970
3. The effect of starvation upon mucosal architecture and cell production rate in the small intestine of the rat;Clarke, R.M.;J. Anat. (Lond.),1970
4. A comparison of metaphase arresting agents and tritiated thymidine autoradiography in measurement of the rate of entry of cells into mitosis in the crypts of Lieberkuhn of the rat. In preparation;Clarke, R.M.,1971
5. Measurement of desoxyribonucleic acid (DNA) in canine jejunal fistular fluid;Goldsmith, D.P.J.;Gut,1969