A Course of Elementary Instruction in Practical Biology |
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Page 6
... take on their characteristic shape , the hind pair only being at first visible on account of the anterior pair being hidden under the opercular membrane . The lungs are developed and , for a time , the tadpole breathes both by these and ...
... take on their characteristic shape , the hind pair only being at first visible on account of the anterior pair being hidden under the opercular membrane . The lungs are developed and , for a time , the tadpole breathes both by these and ...
Page 14
... take place in the cartilage close to its growing extremities . As the bone grows , the superadded sheath invades the middle of the cartilage and more or less replaces it ; while the terminal portions of cartilage continue to grow and ...
... take place in the cartilage close to its growing extremities . As the bone grows , the superadded sheath invades the middle of the cartilage and more or less replaces it ; while the terminal portions of cartilage continue to grow and ...
Page 19
... takes place , the blood which is first driven into the truncus arte- riosus ( the opening of which is , as has been seen , at the right end of the cavity ) is therefore venous . It fills the conus arteriosus and , finding least ...
... takes place , the blood which is first driven into the truncus arte- riosus ( the opening of which is , as has been seen , at the right end of the cavity ) is therefore venous . It fills the conus arteriosus and , finding least ...
Page 28
... take their origin in the front part of the floor of the hind - brain and , passing out at its sides , each dilates into a yellow enlargement - the Gasserian ganglion- which lies in front of the auditory capsule , in the foramen by which ...
... take their origin in the front part of the floor of the hind - brain and , passing out at its sides , each dilates into a yellow enlargement - the Gasserian ganglion- which lies in front of the auditory capsule , in the foramen by which ...
Page 29
... take their origin from the floor of the hind - brain , behind the fifth and in common with the eighth ; and , leaving the hind - brain , enter into close con- nexion with the Gasserian ganglion . Each then divides into two branches , an ...
... take their origin from the floor of the hind - brain , behind the fifth and in common with the eighth ; and , leaving the hind - brain , enter into close con- nexion with the Gasserian ganglion . Each then divides into two branches , an ...
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Common terms and phrases
acid alimentary canal animal aperture appendages arising artery Assistant Master attached auditory axis blastopore blood body body-wall branches Cambridge Canada balsam cavity cell-wall cells chamber chitinous chlorophyll chromatophores cilia College colour commissures containing corpuscles Crayfish delicate dissect dorsal duct ELEMENTARY elongated epidermis epithelium Examine excretory exoskeleton external Fcap fibres filaments fluid Frog front ganglia ganglion genital germinal vesicle gills gland granular high power hypha Illustrated immediately inner integument intestine lateral layer lobes longitudinal low power lying mass maxilla median membrane middle line mouth muscular nematocysts nerve Note nucleus organs orifice outer oval ovum pair passing pericardium pigmented portion posterior Prof Professor Protococcus protoplasm Remove revised round Sect seen segment setæ side solution somite spinal Spirogyra sporangium spores stained structure surface terminal thickened thin tissue Torula transverse section trunk tube vacuole valves veins ventral ventricle vessels wall xylem
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