The phrase "a further caution" is correct and usable in written English.
It can be used when you want to provide an additional warning or piece of advice on a particular subject.
Example: "Before proceeding with the experiment, I would like to offer a further caution regarding the handling of the chemicals involved."
Alternatives: "an additional warning" or "a supplementary caution".
The pitiful turnout – only one in three of those entitled to a vote bothered to cast it – is a further caution against Labour becoming overconfident.
She has written about the evolution of same-sex sex in a variety of insects and other animals, and she added a further caution.
"Under the cover of humanitarian assistance, they are offering bread to our poor people and then asking them to convert to a religion that was canceled out by the advent of Islam," Mullah Saqib said in Dari, adding a further caution.
The defender was cautioned for throwing the ball away after an hour and then picked up a further caution for blocking off Buckley.
It should also serve as a further caution that, for the first years of the new century, the greatest challenge facing high tech may not be innovation but the long-ducked question of labor and work and proper pay.
A further caution voiced by statisticians while interpreting the coefficient of correlation is that the existence of correlation between two variables does not necessarily show that one variable is caused by the other (Glass & Stanley 1970, p. 12; Hopkins & Glass 1978, p. 144; Glass & Hopkins 1984, p. 104; Brown & Rodgers, 2002, p. 190).
Martin Beck, senior economic advisor to the EY ITEM Club, said: "The prospect of a hike in the bank rate remains one for the dim and distant future". He said that Chancellor George Osborne's Budget plans "implied a slightly more severe fiscal squeeze over the next five years than previously planned, which should further caution the MPC against a tighter policy".
In 2006, he received a further police caution after he assaulted his pregnant wife.
Spinta co-founders Todd Schneider and Austin Dean further caution that raising through venture debt is a bad idea when a company has a high burn rate, variable revenue stream, the use of the loan is unclear, or the debt payments would account for more than 25% of operating expenses.
There is one further caution for Conservative MPs about what a nightmare Brexit will do to them.
The demonstration of a mono-allelic effect specifically for Y179C should be considered with further caution, as analysis of the control datasets for the Y179C allele demonstrated that it was not in Hardy Weinberg equilibrium.
