deletions | additions       diff --git a/Introduction_As_with_many_fields__.md b/Introduction_As_with_many_fields__.md  index 706f227..4da4c07 100644  --- a/Introduction_As_with_many_fields__.md  +++ b/Introduction_As_with_many_fields__.md 
...
# Introduction  As with many fields, digitisation is having huge impact on the study of biodiversity. Many different museums and herbaria are engaged with turning physical, analogue specimens into digital objects, whether these are strings of A's, G's, C's and T's from DNA sequencing machines, or the bits obtained from a digital camera. Libraries and commercial publishers are converting physical books and articles into images, which are then converted into strings of letters, subject to the limitations of optical character recognition (OCR). Indeed, there are striking parallels between the formation of DNA sequence databases in the twentieth century and natural history museums in the nineteenth \cite{Strasser_2011} \cite{Strasser_2008}. Viewed in this way, both classical taxonomy and genomics are in the business of digitising life.  But this need not imply that different digitisation efforts are proceeding at the same pace. While the rate of description of new species is roughly constant, the rate at which sequence databases are growing is exponential. This paper explores the implications of these two very different patterns of growth for the field of taxonomy.