The phrase "and subsequently a third" is correct and usable in written English.
It can be used when referring to a sequence of events or items, indicating that a third item follows after the first two.
Example: "We initially had two proposals, and subsequently a third was submitted for consideration."
Alternatives: "and then a third" or "followed by a third".
Nitrite was depleted after 12 days, and subsequently a second spike of 0.5 mM nitrite and 1 mM formate was added to the continuous culture.
Initially, a first order response surface model has been considered and steepest ascent method has been used to reach in the vicinity of optimal region of the response surface and subsequently, a second order response surface model with central composite design (CCD) has been used to take into account the curvature around the optimal region.
The first anodization was carried out until the residual Al film thickness approached the desired level, then the oxides were stripped away, and subsequently a second anodization was performed until the remaining Al samples were completed anodized.
A Cochrane review (Jeffery et al, 2002) independently found similar results, and, subsequently, a sixth randomised trial reported additional results supporting these conclusions (Secco et al, 2002).
In the absence of pathological complete response and furthermore when there is a notable remaining pathological disease, axillary dissection is still important to determine a major prognostic factor and subsequently, a second non cross resistant adjuvant regimen or high dose chemotherapy could lead to a survival benefit.
25 The typical decline is biphasic and consists of a rapid first phase lasting for approximately 1 2 days during which HCV-RNA may fall 1 2 logs in patients infected with genotype 1, and subsequently a slower second phase of HCV-RNA decline.
The full text of these papers was then reviewed and subsequently, after a first reading and application of inclusion/exclusion criteria, 35 (1.2%) studies were selected for critical appraisal.
After that he became a consultant to the UN, advising on the use of waste materials in low-cost construction; and subsequently a visiting professor, first at Cornell University, and then at Rensselaer Polytechnic Institute in upstate New York.
