Helminths -- England -- Early works to 1800. : Vermiculars destroyed : with an historical account of worms, collected from the best authors as well ancient as modern : and experiments proved by that admirable invention of the microscope ... / by R.C. ...
Helminths -- Europe -- Congresses. : Helminth diseases of cattle, sheep and horses in Europe : proceedings of workshop held at Veterinary School of University of Glasgow April 1973 / edited by G. M. Urquhart and J. Armour.
Helmont, Franciscus Mercurius van, 1614-1699. : Truth and innocency defended against calumny and defamation, [electronic resource] : in a late report spread abroad concerning the revolution of humane souls, with a further clearing of the truth, by a plain explication of my sence, &c. / By George Keith.
Helmont, Franciscus Mercurius van, 1614-1699. : Truth and innocency defended against calumny and defamation : in a late report spread abroad concerning the revolution of humane souls : with a futher clearing of the truth by a plain explication of my sence, &c. / by George Keith.
Helms, Cynthia -- Marriage. : An intriguing life [electronic resource] : a memoir of war, Washington, and marriage to an American spymaster / Cynthia Helms, with Chris Black.
Helms, Daniel, -- Trials, litigation, etc. : William P. Pulis, et als., relators, vs. Harvey Iserman, et als., defendants [electronic resource] : on rule to show cause why writ of Quo Warranto should not issue : depositions.
Helms, Janet E. -- Interviews. : An African American story : research summary and life review / Microtraining Associates presents ; with Janet E. Helms, by Chalmer Thompson.
Typhoid fever -- England -- Helmsley. : Dr. R. Bruce Low's report to the Local Government Board on an outbreak of enteric fever at Helmsley, in the Helmsley rural district North Riding of Yorkshire / [R. Bruce Low].