Speight is a surname and given name shared by numerous notable people:

Cysts of the oral and maxillofacial regions /
Power and performance of read-write aware hybrid caches with non-volatile memories
The Desulfurization of Heavy Oils and Residua
Lange's Handbook of Chemistry
The chemistry and technology of petroleum
Short-term neoadjuvant androgen deprivation therapy and external-beam radiotherapy for locally advanced prostate cancer: long-term r...
Moxalactam (latamoxef). A review of its antibacterial activity, pharmacokinetic properties and therapeutic use.
Metoprolol: a review of its pharmacological properties and therapeutic efficacy in hypertension and angina pectoris.
A Review of: “Surfactants and Interfacial Phenomena”
Gliclazide. A preliminary review of its pharmacodynamic properties and therapeutic efficacy in diabetes mellitus