‘That was Dubuisson and Gille’s initial assumption as well,’ agreed Fieldhurst, ‘so they sought to improve their technique. However, they could find no difference between megafoetuses of succeeding generations in terms of size or vitality. Nor was there any decline in the number of spermatozoa or ova; the penultimate generation was fully as fertile as the first. The transition to sterility was an abrupt one.
‘They found another anomaly as welclass="underline" while some spermatozoa yielded only four or fewer generations, variation occurred only across samples, never within a single sample. They evaluated samples from father and son donors, and in such instances, the father’s spermatozoa produced exactly one more generation than the son’s. And from what I understand, some of the donors were aged individuals indeed. While their samples held very few spermatozoa, they nonetheless held one more generation than those from sons in the prime of their lives. The progenitive power of the sperm bore no correlation with the health or vigor of the donor; instead, it correlated with the generation to which the donor belonged.’
Fieldhurst paused and looked at Stratton gravely. ‘It was at this point that the Académie contacted me to see if the Royal Society could duplicate their findings. Together we have obtained the same result using samples collected from peoples as varied as the Lapps and the Hottentots. We are in agreement as to the implication of these findings: that the human species has the potential to exist for only a fixed number of generations, and we are within five generations of the final one.’
Stratton turned to Ashbourne, half expecting him to confess that it was all an elaborate hoax, but the elder nomenclator looked entirely solemn. Stratton looked at the megafoetus again and frowned, absorbing what he had heard. ‘If your interpretation is correct, other species must be subject to a similar limitation. Yet from what I know, the extinction of a species has never been observed.’
Fieldhurst nodded. ‘That is true. However, we do have the evidence of the fossil record, which suggests that species remain unchanged for a period of time, and then are abruptly replaced by new forms. The Catastrophists hold that violent upheavals caused species to become extinct. Based on what we’ve discovered regarding preformation, it now appears that extinctions are merely the result of a species reaching the end of its lifetime. They are natural rather than accidental deaths, in a manner of speaking.’ He gestured to the doorway from which they had entered. ‘Shall we return upstairs?’
Following the two other men, Stratton asked, ‘And what of the origination of new species? If they’re not born from existing species, do they arise spontaneously?’
‘That is as yet uncertain. Normally only the simplest animals arise by spontaneous generation: maggots and other vermiform creatures, typically under the influence of heat. The events postulated by Catastrophists – floods, volcanic eruptions, cometary impacts – would entail the release of great energies. Perhaps such energies affect matter so profoundly as to cause the spontaneous generation of an entire race of organisms, nested within a few progenitors. If so, cataclysms are not responsible for mass extinctions, but rather generate new species in their wake.’
Back in the laboratory, the two elder men seated themselves in the chairs present. Too agitated to follow suit, Stratton remained standing. ‘If any animal species were created by the same cataclysm as the human species, they should likewise be nearing the end of their life spans. Have you found another species that evinces a final generation?’
Fieldhurst shook his head. ‘Not as yet. We believe that other species have different dates of extinction, correlated with the biological complexity of the animal; humans are presumably the most complex organism, and perhaps fewer generations of such complex organisms can be nested inside a spermatozoon.’
‘By the same token,’ countered Stratton, ‘perhaps the complexity of the human organism makes it unsuitable for the process of artificially accelerated growth. Perhaps it is the process whose limits have been discovered, not the species.’
‘An astute observation, Mr. Stratton. Experiments are continuing with species that more closely resemble humans, such as chimpanzees and ourang-outangs. However, the unequivocal answer to this question may require years, and if our current interpretation is correct, we can ill afford the time spent waiting for confirmation. We must ready a course of action immediately.’
‘But five generations could be over a century – ’ He caught himself, embarrassed at having overlooked the obvious: not all persons became parents at the same age.
Fieldhurst read his expression. ‘You realize why not all the sperm samples from donors of the same age produced the same number of generations: some lineages are approaching their end faster than others. For a lineage in which the men consistently father children late in life, five generations might mean over two centuries of fertility, but there are undoubtedly lineages that have reached their end already.’
Stratton imagined the consequences. ‘The loss of fertility will become increasingly apparent to the general populace as time passes. Panic may arise well before the end is reached.’
‘Precisely, and rioting could extinguish our species as effectively as the exhaustion of generations. That is why time is of the essence.’
‘What is the solution you propose?’
‘I shall defer to Dr. Ashbourne to explain further,’ said the earl.
Ashbourne rose and instinctively adopted the stance of a lecturing professor. ‘Do you recall why it was that all attempts to make automata out of wood were abandoned?’
Stratton was caught off guard by the question. ‘It was believed that the natural grain of wood implies a form in conflict with whatever we try to carve upon it. Currently there are efforts to use rubber as a casting material, but none have met with success.’
‘Indeed. But if the native form of wood were the only obstacle, shouldn’t it be possible to animate an animal’s corpse with a name? There the form of the body should be ideal.’
‘It’s a macabre notion; I couldn’t guess at such an experiment’s likelihood of success. Has it ever been attempted?’
‘In fact it has: also unsuccessfully. So these two entirely different avenues of research proved fruitless. Does that mean there is no way to animate organic matter using names? This was the question I left Trinity in order to pursue.’
‘And what did you discover?’
Ashbourne deflected the question with a wave of his hand. ‘First let us discuss thermodynamics. Have you kept up with recent developments? Then you know the dissipation of heat reflects an increase in disorder at the thermal level. Conversely, when an automaton condenses heat from its environment to perform work, it increases order. This confirms a long-held belief of mine that lexical order induces thermodynamic order. The lexical order of an amulet reinforces the order a body already possesses, thus providing protection against damage. The lexical order of an animating name increases the order of a body, thus providing motive power for an automaton.
‘The next question was, how would an increase in order be reflected in organic matter? Since names don’t animate dead tissue, obviously organic matter doesn’t respond at the thermal level; but perhaps it can be ordered at another level. Consider: a steer can be reduced to a vat of gelatinous broth. The broth comprises the same material as the steer, but which embodies a higher amount of order?’
‘The steer, obviously,’ said Stratton, bewildered.