I really enjoyed Shiebinger's book. Here, she investigates a case of what she and Robert Proctor call "agnotology." This is a slippery concept, but it basically points to instances in which knowledge is not developed and spread, despite the fact that it is well understood in certain locales. To flesh out this idea, she looks to the spread of certain abortifacients that were commonly used, especially among slave populations, in the 16th through 18th century Caribbean colonies. The first two chapters look at the early development of what Shiebinger (anachronistically? still not sure how I feel about this) names "bioprospecting." She pays particular attention to the paucity of women on such missions, all the while pointing out some rather amazing exceptions (one fifty year old women who takes over her dead husband's position as a naturalist, and another case in which a young woman actually passed herself off as a man for over a year!). She next turns to the relations between these bioprospectors and the native populations they encounter. This account is particularly problematic, though Shiebinger acknowledges this fact, due to the absolute lack of accounts of the points of view of the natives. The resulting chapter can't help but portray natives as slippery, cunning, and difficult, foiling the pompous, dogmatic and borderline foolish Europeans' attempts to pry valuable plant knowledge from locals. I'll admit that I enjoyed reading this, even though it sent my historical-accuracy alarm bells a-ringing. Following these first two rather charming chapters, Shiebinger delves into the dark and repulsive world of the Caribbean slave sexual economy, arguing that slave women often aborted as a form of resistance. Clearly, slave women possessed this knowledge, as did many colonial administrators. Despite this, as Shiebinger shows, knowledge of particular types of abortifacients never took root in Europe. The fact that mercantilist economies were generally pronatalist, and that women rarely embarked on "bioprospecting" voyages, in conjunction with the dangers of abortifacients as well as their moral ambiguity (most were looked down on but not outlawed until the early 19th century in Western Europe) led to a form of willful European ignorance. From a historical evidence point of view, I think the fact that certain colonial administrators knew of Caribbean abortifacients and condemned them or refused to transmit that knowledge is, if not a smoking gun, a solid fingerprint. Otherwise, it really is difficult to know exactly why something doesn't happen. Usually, historians focus on why things DO happen, so it's a bit of an inversion of our typical argumentative style. This presents significant challenges, though not, I think, insurmountable.
I think the idea of agnotology is very powerful. Shiebinger's concluding vignette, in which two Dominican doctors reveal their knowledge of abortifacients, but refuse to be named on account of the illegality of abortion, suggest that we should have an ongoing concern about our own forms of cultivated ignorance, even outside the context of early colonial encounters, in our highly globalized world. The notion that our current beliefs, infrastructres, political machines, etc., actively (and perhaps even "subconsciously") cull certain facts or knowledge, outside of things we think are false or irrelevant, is a big and unsettling idea in its own right.
As a rambling aside/conclusion, I approve of the fact that Shiebinger didn't make recourse to the "actual" efficacy of abortifacients to make her case (it's only necessary for the historical actors to believe in their efficacy)...but...I did want to know more about whether or not they, like, worked, and whether that had to do with their lack of transmission. This points to the slippery slope of judging whether the "truth" quality of knowledge has anything to do with its spread...I know that no naive position should be taken on this point...but, I wish she'd talked more about this instead of just dismissing it as something historians of science have typically erroneously presumed.