The purest, most palatable, most digestible, and most efficacious cod liver oil. This cod liver oil is encouraged to be used by multiple doctors who say it is very useful, will not cause nausea, and is a very pure oil. This advertisement is advertising a product for good health, like many others during this time. This advertisement doesn't give much information from the makers on its use or effects, but rather gives multiple reviews from other doctors to show that it is used and well liked by professionals. This can be effective to the consumers because it is showing how real doctors approve of this product. This is very effective and different from other advertisements seen during this time in its approach of advertising to the consumer.
Manuscripts, Archives, and Special Collections, Washington State University Libraries: http://www.wsulibs.wsu.edu/holland/masc/masc.htm