Subject index

(1)

SUBJECT INDEX.

Volume 17, Nos. 1 and 2.

Alimentary Tract. PAGE

Alkaloids.

Studies on the alimentary tract of merino sheep in South Africa VI. The role of infusoria in rumina! digestion with some remarks on rumina! bacteria . . . . . . . . . . . . .. . . . . . . . 61

South African senecio alkaloids Part 6. The toxic alkaloids of Senecio sceleratus sp. nov. Schweickerdt . . . . . . .. . 181 Anatomical Studies.

Bovine.

Anatomical studies No. 65.

bovines Two cases of cervical ribs in

Treatment and control of chronic streptococcus mastitis in bovines.

351

Results obtained in t\vo herds . . . . . . . . . .. . .. . . . . . 7 Anatomical studies No. 65. Two cases of cervical ribs in

bovines .. . .. . .. . .. . .. . .. . .. . . .. . . . . .. .. . .. . .. . . .. 351

Calcium Carbide.

Poisoning by spent calcium carbide 207

Carbohydrate Complex of Grasses.

The relative digestibility of the constituents of the carbohydrate complex of grasses at successive stages of growth with reference to their partition into crude fibre and nitrogen- free extract according to the standard method for feeding stuff analysis . . . . .. . .. . . .. . . .. . . .. . . . .. . . 165 Cervical Ribs.

Conception.

Anatomical studies No. 65. Two cases of cervical ribs in

bovines ... ... ... .. . 351

The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal tel1lperature at the time of mating on conception . . . .,. .. . . . . . .. . . . . .. . . . . . . . . . 105

Crude Fibre.

The relative digestibility of the constituents of the carbohydrate complex of grasses at successive stages of growth with reference to their partition into crude fibre and nitrogen- free extract according to the standard method for feeding stuff analysis . . . . . . . . . .. . . . . .. . . . . . .. . . . . 165 Cynodon plectostachyum.

Dioestrus.

The hydrocyanic acid content of Cynodon plectostachyum Pilger (Giant Star grnss) and its suitability as a pasture grass 191

The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception . . . . . . . . . . .. . . . .. . . . . . . . . 105

(2)

PAGE Domsiekte.

Domsiekte or pregnancy disease in sheep I. A review of the literature ... ... ... :... 225 Domsiekte or pregnancy disease in sheep II ... ... ... ... ... ... ... 245

Ferrets.

Preliminary observations on the breeding of ferrets in South Africa ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... 297

Fertilise.

A note on the results 'of an attempt to fertilise Native goat-ewes with sheep rams .. . .. . . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . .. 115

Fleece Density.

Studies on merino wool production. Plain-bodied and developed merino sheep II. Fleece density tests on a group of extremely plain-bodied merino stud rams .. . .. . .. . .. . .. . .. . .. . .. . .. . 345 Giant Star Grass.

Goat.

The hydrocyanic acid content of Oynodon plectostachyum Pilger (Giant Star grass) and its suitability as a pasture grass ... ... 191

A note on the results of an attempt to fertilise Native goat-ewes with sheep rams .. . .. . . .. .. . . .. .. . . .. . .. . .. . .. . .. . .. . . .. 115

Hydrocyanic Acid.

The hydrocyanic acid content of Ounodon -plectostachyum Pilger (Giant Star grass) and its suitability as a pasture grass .. . .. . 191 Hydrogen-ion Concentration.

Infusoria,

The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and The influence of the vaginal temperature at the time of mating on conception .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . .. . . . . .. . .. . .. . 105

Studies on the alimentary tract of merino sheep i_n South Africa VI. The role of infusoria in rumina! digestion with some remarks on ruminal bacteria . . . . . . . . . . . . . . . . . . . .. 61

Intra-testicular Temperature.

Further observations on the scrotal skin temperature of the bull, with some remarks on the intra-testicular temperature . . . 123

Ixodes alluaudi.

Tieks in the South African Zoological Survey collection-Part I.

Ixodes alhmudi Neumann 1913, a primitive tick parasitic on shrews . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Living Tissue.

Thermoc~upl~s. for _temperature measurements on skin surfaces and m hvmg tissue_... ... ... ... ... ... ... ... ... ... ... ... ... 141

Mastitis.

Results obtained in two herds . . . . . . 7

368

'

(3)

,

,Mating, PAGE

Merino.

The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 105

Studies on the alimentary tract of merino sheep in South .Africa VI. The role of infusoria in rumina! digestion with some remarks on ruminal bacteria . . . . . . . . . . . . 61 Studies on the photosensitisation of animals in South .Africa XI.

The reaction of the sensitised merino skin to radiation in different regions of the spectrum . . . . . . . . . . . . . . . . . . . . . 89 The hydrogen-ion concentration of tl).e vaginal secretion of merino

sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception . . . . . . . . . . . . . . . 105 Studies on the variation within the fleece of the characteristics

of South .African merino wool. I. Tensile strength . . . 311 Studies on merino wool production. Plain-bodied and developed

merino sheep I. .A standard of production of a group of plain-bodied stud ewes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 319 Studies on merino wool production. Plain-bodied and developed

merino sheep II. Fleece density tests on a group of extremely plain-bodied merino stud rams . . . . . . . . . . . . . . . 345 Nitrogen-free Extract.

Oestrus.

The relative digestibility of the constituents of the carbohydrate complex of grasses at successive stages of growth with reference to their partition into crude fibre and nitrogen- free extract according to the standard method for feeding stuff analysis . . . . . . . . . . . . . . . . . . . . . . . . . . 165

The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and 12regnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception . . . . . . . . . . . . . . . 105 Photosensitisation.

Poisoning.

Studies on the photosensitisation of animals in South .Africa XI.

The reaction of the sensitised merino skin to radiation in different regions of the spectrum . . . . . . . . . . . . . . . . . . . . . 89

Poisoning by voided urine . . . . . . . . . . . . . . . . . . . . . . ..

Poisoning by spent calcium carbide ... .

201 207 Poisonous Plants.

Pregnancy.

Recent investigations into the toxicity of known and unknown poisonous plants in the Union of South .Africa XII . . . .. . . 211

The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception . . . . . . . . . . . . . . . . . . . . . 105

· Pregnancy Disease.

Domsiekte or pregnancy disease in sheep I. .A review literature . . . . . . . . . . . . . . . . . . ..

Domsiekte or pregnancy qisease in sheep II ...

of the 225 245

(4)

Radiation. ^J'AGK Studies on the photosensitisation of animals in South Africa XI.

The reaction of the sensitised merino skin to radiation in different regions of the spectrum ^{0 0}^. ^{0 0}^. ^{0 0}^. ^{0 0 .} ^{0 0 .} ^{0 0}^. ^{0 0 .} ^{0 0 .} 89

Relative Digestibility.

The relative digestibility of the constituents of the carbohydrate complex of grasses at successive stages of growth with reference to their partition into crude fibre and nitrogen- free extract according to the standard method for feeding stuff analysis ^{0 0}^. ^{0 0}^. ^{0 0}^. ^{0 0 .} ^{0 0 .} ^{0 0}^. ^{0 0 .} ^{0 0 .} ^{0 0 .} ^{0 0 .} ^{0 0 .} ^{0 0}^. ^{0 0}^. ^{0 0}^. 165

Ruminal Bacteria.

Studies on the alimentary tract of merino sheep in Sduth Africa VI. The role of infusoria in ruminal digestion with some remarks on ruminal bacteria ^{0 0}^. ^{0 0 .} ^{0 0 .} ^{0 0}^. ^{0 0 .} ^{0 0 .} ^{0 0 .} ^{0 0 .} 61

Rumina! Digestion.

Studies on the alimentary tract of merino sheep in South Africa VI. The role of infusoria in ruminal digestion with some remarks on rumina! bacteria ^{0 0 .} ^•^oo^·^{• • •} ^{0 0 .} ^•^{0 0} ^{0 0 .} ^{0 0 .} ^•^{0 0} ^{0 0 .} ^{0 0 .} 61

Scrotal Skin Temperature.

Further observations on the scrotal skin temperature of the bull, with some remarks on the intra-testicular temperature 0 0 • • 0 0 123

Senecio.

South African senecio alkaloids Part 6. The toxic alkaloids of Senecio sceleratus sp. nov. Schweickerdt ^{0 0 0} ^·^oo ^{0 0}⁰ ^{0 0 0} ^{o o •} 181 Sex·determinat ion.

Sheep.

Shrews.

The hydrogen-ion concentration of the vaginal secretion of merino sheep during oestrus, dioestrus, and pregnancy, with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception ^{0 0 .}^{0 0 .}^{0 0 .} ^{0 0 .}^{0 0 .}^•^{0 0} ^{0 0}^. ^•^{0 0} ^{0 0 .}^{0 0}^. ^•^{0 0} ^•^{0 0} ^•^{0 0}^{. .}^• ^•^{0 0} ^{0 0}^. 105

A note on the results of an attempt to fertilise Native goat-ewes with sheep rams ^{0 0}^. ^{0 0 .} ^{0 0}^. ^{0 0 .} ^{0 0 .} ^{0 0 .} ^•^{0 0} ^{0 0 .} ^{0 0 .} ^•^{0 0} ^{0 0.} ^{0 0 .} ^{0 0}^. ^{0 0 .} 115 Domsiekte or pregnancy disease in sheep I. A review of the

literature ^{0 0 .} ^{0 0 .} 0 0 • • 0 0 0 0. 0 0 . 0 0. oo• 0 0 . 0 0. 225 Domsiekte or pregnancy disease in sheep II . . . . . . 245

Ticks in the South African Zoological Survey collection-Part I.

Ixodes aUuaudi Neumann 1913, a primitive tick parasitic on shrews ^{0 0}^. ^•^{0 0} ^•^{0 0} ^{0 0 .} ^{0 0 .} ^•^{0 0} ^•^{0 0} ^{0 0}^. ^{0 0}^. ^{0 0}^. ^{0 0}^. 51

Skin Surfaces.

Thermoc~upl~s. for .temperature measurements on skin surfaces and m hvmg t1ssue ^{0 0 .} ^{0 0}^. ^{0 0}^. ^{0 0}^. ^{0 0 .} ^•^{0 0} ^•^{0 0} ^•^{0 0} ^{0 0}^. ^•^{0 0} ^{0 0 .}^{0 0 .} ^{. .}^• 141

Spectrum.

Studies on the photosensitisation of animals in South Africa 'XI. The reaction of the sensitised merino skin to ra.diation in different regions of the spectrum . . . . . . . . . 89 Streptococcus.

Results obtained in two herds . ^{0 0} ^{0 0}^. ^{0 0 .} ^{0 0 •} ^•^{0 0} ^{0 0}^. ^•^{. .}^{0 0 .} 7

(5)

PAGE

Temperature Measurements.

'rhermocouples for temperature measurements on skin surfaces and in living tissue . . . . . . . . . . . . 141

Tensile Strength.

Studies on the variation within the fleece of the characteristics of South African merino wool. I. Tensile strength . . . . . . 311

Thermocouples.

Thermocouples for temperature measurements on skin surfaces and in living tissue . .. .. . . . . . . . . ... . . . .. . . . . .. ... .. . 141

Ticks.

Ticks in the South African Zoological Survey collection. Part I. Ixodes ulluaudi Neumann 1913, a primitive tick parasitic

on shrews . . . . . . . . . . . . . . . 51

Urine.

Poisoning by voided unne 201

Vaginal Secretion and Temperature.

Wool.

The hydrogen-iou concentration of the vaginal sec--retion of merino sheep during oestrus, dioestrus and pregnancy with some remarks on its influence on sex-determination, and the influence of the vaginal temperature at the time of mating on conception . . . . . . . . . . . . . . . . . . 105

Studies on the variation within the fleece of the ehara.cteristics of South African merino wool. I. Tensile strength . . . 311 Studies on merino wool production. Plain-bodied and developed

merino sheep I. The standard of production of a group of plain-bodied stud ewes . . . . . . . . . . . . . . . . . . . . . . . . 319 Studies on merino wool production. Plain-bodied and develoJ!.ed

merino sheep II. Fleece density tests on a group of extremely plain-bodied merino stud rams . . . . . . . . . .. . . 345