Then, some sulfur was pulverized, spread over the stacked ore and ignited, causing the free sulfur to melt down the hills.

Then the solution of the acoustic wave equation is

Then the copper is passed through an electro-winning process to increase its purity: An electric current is passed through the resulting solution of copper ions.

Then, in an effort to increase the water solubility of uric acid, lithium urate was added to the solution.

We wish to maximize total value subject to the constraint that total weight is less than or equal to W. Then for each w ≤ W, define m to be the maximum value that can be attained with total weight less than or equal to w. m then is the solution to the problem.

Then the emf, E < sub > X </ sub >, of the same cell containing the solution of unknown pH is measured.

⟨ H ⟩, be the group generated by H. Then the word problem in H < sup >*</ sup > is solvable: given two words h, k in the generators H of H < sup >*</ sup >, write them as words in X and compare them using the solution to the word problem in G. It is easy to think that this demonstrates a uniform solution the word problem for the class K ( say ) of finitely generated groups that can be embedded in G. If this were the case the non-existence of a universal solvable word problem group would follow easily from Boone-Rogers.

Then the solution of the Laplace equation inside the sphere is given by

Then perhaps adjusting the calibration tolerance for the gage would be a better solution.

Then it can be shown that the equipotential solution is an ellipsoid of revolution.

Then any solution of the inhomogeneous equation may have a solution of the homogeneous equation added to it, and still remain a solution.

Then for an equation to have a solution, we must have ( one constraint ), and in that case the solution space is or equivalently stated, ( one degree of freedom ).

Then there exists an open neighbourhood V of F ( 0 ) in Y and a continuously differentiable map G: V → X such that F ( G ( y )) = y for all y in V. Moreover, G ( y ) is the only sufficiently small solution x of the equation F ( x ) = y.

Then Serbia and Greece proposed that each of the three countries reduce its army by one fourth, as a first step to facilitate a peaceful solution, but Bulgaria rejected it.

Then, the solutions are mutated and selected for those with higher fitness, until a satisfying solution has been found.

Then the solution is passed through a second detector.

Then there is a nontrivial nonnegative integer solution obtained by replacing each of by its absolute value.

Then, when Bob comes up with the solution himself a few days later, Alice can prove that she had the solution earlier by revealing it and having Bob hash it and check that it matches the hash value given to him before.

Then the air was passed through a carbon dioxide absorbing solution.

Then the general solution is

Then a solution to our minimization problem is given by

Then he was on his way at a gallop.

Then he went on to the Cheyennes and told them that the Sioux was goin' to move up.

Then, with a glory that almost wiped out the deep, downward sags in her careworn face, Matilda leaned over the wheel and shouted to Hez, who was stumbling along in the heat and the dust on the opposite side of the wagon `` Pa!!

Then the darkness thinned, and there was light again, and then bright sunlight.

Then she saw Ramey and her face was misshapen with bewilderment.

Then there was no saying how many times the marine had blown his nose on the handkerchief.

Then when Miss Langford was on the end of the line of girls, Jack, in the middle of the line, gave an extra hard pull and the young teacher sprawled backwards, sitting down hard, her dress flying over her head.

Then suddenly there was a tremendous revulsion of popular feeling.

Then, in some way, this lack of faith in the cavalry became mixed up in his mind with the dragging effect of wagon trains and was hardened into a prejudice.

Then there was Mark Howe and there was Henry Dwight Sedgwick, an accomplished man of letters who wrote in the spirit of Montaigne and produced in the end a formidable body of work.

Then, all but blind, he said there was nothing in Back to Methuselah --, -- `` G.B.S. ought to have known that '', -- and `` I look at my bookshelves despairingly, knowing that I can have nothing more to do with them ''.

Then he kept Blackman awake for more than an hour while he did an imaginary dialogue between his wife and himself in which, discussing the evening, he was continually berated.

Then, since the auction was being held nearby, he had walked to it.

Then the nigger boy turned back and he was alone.

Then Katie stumbled, and again he was falling, falling!!

Then he was asking himself the usual early morning questions: What the Hell am I doin here??

Then why was he assuming the role -- the gesture and the suffering??

Then Laura took her gently and shoved her off again, toward Fritzie: Amy did not laugh -- this was work, concentration, achievement.

`` Then what was it ''??

Then it was gone.

Then she fell asleep again as soddenly as a person with fever, and when she awoke it was dark outside and the clarity was back in her eyes.

Then he stood back to look at Mr. Jack, who was pulling on his pigskin gloves.

Then epistolatory me was a foreign correspondent dispatching exciting cables and communiques, full of dash and wit and glamor, quoting from the books I read, imitating the grand styles of the authors recommended by a teacher in whose special, after-school class I was enrolled.