John Graham Kerr
John Graham Kerr
Sir John Graham Kerr, known to his friends as Graham Kerr, was a British embryologist and Unionist Member of Parliament (MP). He is best known for his studies of the embryology of lungfishes. He was involved in ship camouflage in the First World War, and his pupil Hugh B. Cott influenced military camouflage in the Second World War.
"Imperfect as is the , how infinitely more imperfect must necessarily be our knowledge of that record! The largest s, , and other excavations made by man, are in themselves relatively insignificant scratches on the surface of the vast mass of fossil-bearing rocks, but yet how small a fraction of the material obtained in such excavations ever passes under the detailed scrutiny of the palaeontologist."
"The majority of fishes produce s in enormous numbers, amounting in some cases to several millions, and correlated with this the size of the individual egg has become much reduced. The average diameter of a ean egg may be taken as about 1 . In an egg of this size segmentation of so markedly meroblastic a character would be puzzling except on the hypothesis that the meroblastic condition had arisen in ancestral forms in which the eggs were much larger."
"The general lecture course in is accompanied by laboratory work extending over a hundred hours. In great part this follows the usual lines such as are laid down in and Hurst’s Text-book, but a special feature is made of the study of a valuable series of demonstration specimens. This includes the study, under high-power s, of such organisms as s, , s, and s. Experience has shown that students fully appreciate the privilege of being able to examine such preparations for themselves, and that they take the greatest care not to do damage. Opportunities are also given for seeing Trypanosomes, , e and so on, in the living condition. This demonstration part of the course is regarded as being of special value in arousing and gripping the interest of the student."
"He once jokingly referred to the report, published in , of his award of the in 1955 as "a very pleasant obituary notice"."
