Frei, WalterTransvaal Department of Agriculture2009-06-112009-06-111910Frei, W 1910, 'The refractive index of horse-sera', Report of the Government Veterinary Bacteriologist for the year 1908-1909, pp. 110-114.http://hdl.handle.net/2263/10405The journals have been scanned with a SupraScan 10000RGB scanner; 24-bit true colour, 400 dpi, saved in TIFF-format. Copies of the master images have been converted to Black & White, 1-bitmap images and OCRed with ABBYY Fine Reader v.9 software. Adobe Acrobat v.9 was used for the merging and conversion to the final presentation PDF-format.A refractometer of Pulfrich with heated prisms was used to obtain the results.The first 7 pages of the Report consist of frontmatter. This article is the fifth of eight articles in the report.enTransvaal Department of Agriculture. ©University of Pretoria. Dept of Library Services (digital).Veterinary medicineVeterinary bacteriologyVeterinary reportsGovernment Veterinary ReportsRefractometryVeterinary medicine -- South AfricaVeterinary bacteriology -- South AfricaVeterinary medicine -- History -- South AfricaRefractometersTechnical Report